640619280

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:548

約数の個数: 400

約数和(自身を含む): 2635902720

約数和(自身を除く): 1995283440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 29, 30, 35, 36, 40, 42, 45, 48, 54, 56, 58, 60, 63, 70, 72, 80, 81, 84, 87, 90, 105, 108, 112, 116, 120, 126, 135, 140, 144, 145, 162, 168, 174, 180, 189, 203, 210, 216, 232, 240, 252, 261, 270, 280, 290, 315, 324, 336, 348, 360, 378, 405, 406, 420, 432, 435, 464, 487, 504, 522, 540, 560, 567, 580, 609, 630, 648, 696, 720, 756, 783, 810, 812, 840, 870, 945, 974, 1008, 1015, 1044, 1080, 1134, 1160, 1218, 1260, 1296, 1305, 1392, 1461, 1512, 1566, 1620, 1624, 1680, 1740, 1827, 1890, 1948, 2030, 2088, 2160, 2268, 2320, 2349, 2435, 2436, 2520, 2610, 2835, 2922, 3024, 3045, 3132, 3240, 3248, 3409, 3480, 3654, 3780, 3896, 3915, 4060, 4176, 4383, 4536, 4698, 4870, 4872, 5040, 5220, 5481, 5670, 5844, 6090, 6264, 6480, 6818, 6960, 7305, 7308, 7560, 7792, 7830, 8120, 8766, 9072, 9135, 9396, 9740, 9744, 10227, 10440, 10962, 11340, 11688, 11745, 12180, 12528, 13149, 13636, 14123, 14610, 14616, 15120, 15660, 16240, 16443, 17045, 17532, 18270, 18792, 19480, 20454, 20880, 21915, 21924, 22680, 23376, 23490, 24360, 26298, 27272, 27405, 28246, 29220, 29232, 30681, 31320, 32886, 34090, 35064, 36540, 37584, 38960, 39447, 40908, 42369, 43830, 43848, 45360, 46980, 48720, 51135, 52596, 54544, 54810, 56492, 58440, 61362, 62640, 65745, 65772, 68180, 70128, 70615, 73080, 78894, 81816, 82215, 84738, 87660, 87696, 92043, 93960, 98861, 102270, 105192, 109620, 112984, 116880, 122724, 127107, 131490, 131544, 136360, 141230, 146160, 153405, 157788, 163632, 164430, 169476, 175320, 184086, 187920, 197235, 197722, 204540, 210384, 211845, 219240, 225968, 245448, 254214, 262980, 263088, 272720, 276129, 282460, 296583, 306810, 315576, 328860, 338952, 350640, 368172, 381321, 394470, 395444, 409080, 423690, 438480, 460215, 490896, 494305, 508428, 525960, 552258, 564920, 593166, 613620, 631152, 635535, 657720, 677904, 736344, 762642, 788940, 790888, 818160, 847380, 889749, 920430, 988610, 1016856, 1051920, 1104516, 1129840, 1143963, 1186332, 1227240, 1271070, 1315440, 1380645, 1472688, 1482915, 1525284, 1577880, 1581776, 1694760, 1779498, 1840860, 1906605, 1977220, 2033712, 2209032, 2287926, 2372664, 2454480, 2542140, 2669247, 2761290, 2965830, 3050568, 3155760, 3389520, 3558996, 3681720, 3813210, 3954440, 4418064, 4448745, 4575852, 4745328, 5084280, 5338494, 5522580, 5719815, 5931660, 6101136, 7117992, 7363440, 7626420, 7908880, 8007741, 8897490, 9151704, 10168560, 10676988, 11045160, 11439630, 11863320, 13346235, 14235984, 15252840, 16015482, 17794980, 18303408, 21353976, 22090320, 22879260, 23726640, 26692470, 30505680, 32030964, 35589960, 40038705, 42707952, 45758520, 53384940, 64061928, 71179920, 80077410, 91517040, 106769880, 128123856, 160154820, 213539760, 320309640, 640619280]

約数ペア:

[(1, 640619280), (2, 320309640), (3, 213539760), (4, 160154820), (5, 128123856), (6, 106769880), (7, 91517040), (8, 80077410), (9, 71179920), (10, 64061928), (12, 53384940), (14, 45758520), (15, 42707952), (16, 40038705), (18, 35589960), (20, 32030964), (21, 30505680), (24, 26692470), (27, 23726640), (28, 22879260), (29, 22090320), (30, 21353976), (35, 18303408), (36, 17794980), (40, 16015482), (42, 15252840), (45, 14235984), (48, 13346235), (54, 11863320), (56, 11439630), (58, 11045160), (60, 10676988), (63, 10168560), (70, 9151704), (72, 8897490), (80, 8007741), (81, 7908880), (84, 7626420), (87, 7363440), (90, 7117992), (105, 6101136), (108, 5931660), (112, 5719815), (116, 5522580), (120, 5338494), (126, 5084280), (135, 4745328), (140, 4575852), (144, 4448745), (145, 4418064), (162, 3954440), (168, 3813210), (174, 3681720), (180, 3558996), (189, 3389520), (203, 3155760), (210, 3050568), (216, 2965830), (232, 2761290), (240, 2669247), (252, 2542140), (261, 2454480), (270, 2372664), (280, 2287926), (290, 2209032), (315, 2033712), (324, 1977220), (336, 1906605), (348, 1840860), (360, 1779498), (378, 1694760), (405, 1581776), (406, 1577880), (420, 1525284), (432, 1482915), (435, 1472688), (464, 1380645), (487, 1315440), (504, 1271070), (522, 1227240), (540, 1186332), (560, 1143963), (567, 1129840), (580, 1104516), (609, 1051920), (630, 1016856), (648, 988610), (696, 920430), (720, 889749), (756, 847380), (783, 818160), (810, 790888), (812, 788940), (840, 762642), (870, 736344), (945, 677904), (974, 657720), (1008, 635535), (1015, 631152), (1044, 613620), (1080, 593166), (1134, 564920), (1160, 552258), (1218, 525960), (1260, 508428), (1296, 494305), (1305, 490896), (1392, 460215), (1461, 438480), (1512, 423690), (1566, 409080), (1620, 395444), (1624, 394470), (1680, 381321), (1740, 368172), (1827, 350640), (1890, 338952), (1948, 328860), (2030, 315576), (2088, 306810), (2160, 296583), (2268, 282460), (2320, 276129), (2349, 272720), (2435, 263088), (2436, 262980), (2520, 254214), (2610, 245448), (2835, 225968), (2922, 219240), (3024, 211845), (3045, 210384), (3132, 204540), (3240, 197722), (3248, 197235), (3409, 187920), (3480, 184086), (3654, 175320), (3780, 169476), (3896, 164430), (3915, 163632), (4060, 157788), (4176, 153405), (4383, 146160), (4536, 141230), (4698, 136360), (4870, 131544), (4872, 131490), (5040, 127107), (5220, 122724), (5481, 116880), (5670, 112984), (5844, 109620), (6090, 105192), (6264, 102270), (6480, 98861), (6818, 93960), (6960, 92043), (7305, 87696), (7308, 87660), (7560, 84738), (7792, 82215), (7830, 81816), (8120, 78894), (8766, 73080), (9072, 70615), (9135, 70128), (9396, 68180), (9740, 65772), (9744, 65745), (10227, 62640), (10440, 61362), (10962, 58440), (11340, 56492), (11688, 54810), (11745, 54544), (12180, 52596), (12528, 51135), (13149, 48720), (13636, 46980), (14123, 45360), (14610, 43848), (14616, 43830), (15120, 42369), (15660, 40908), (16240, 39447), (16443, 38960), (17045, 37584), (17532, 36540), (18270, 35064), (18792, 34090), (19480, 32886), (20454, 31320), (20880, 30681), (21915, 29232), (21924, 29220), (22680, 28246), (23376, 27405), (23490, 27272), (24360, 26298)]