21450240

素因数分解:

$2^9\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1$

素因数の和:62

約数の個数: 360

約数和(自身を含む): 90965160

約数和(自身を除く): 69514920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 28, 30, 32, 35, 36, 38, 40, 42, 45, 48, 49, 56, 57, 60, 63, 64, 70, 72, 76, 80, 84, 90, 95, 96, 98, 105, 112, 114, 120, 126, 128, 133, 140, 144, 147, 152, 160, 168, 171, 180, 190, 192, 196, 210, 224, 228, 240, 245, 252, 256, 266, 280, 285, 288, 294, 304, 315, 320, 336, 342, 360, 380, 384, 392, 399, 420, 441, 448, 456, 480, 490, 504, 512, 532, 560, 570, 576, 588, 608, 630, 640, 665, 672, 684, 720, 735, 760, 768, 784, 798, 840, 855, 882, 896, 912, 931, 960, 980, 1008, 1064, 1120, 1140, 1152, 1176, 1197, 1216, 1260, 1280, 1330, 1344, 1368, 1440, 1470, 1520, 1536, 1568, 1596, 1680, 1710, 1764, 1792, 1824, 1862, 1920, 1960, 1995, 2016, 2128, 2205, 2240, 2280, 2304, 2352, 2394, 2432, 2520, 2560, 2660, 2688, 2736, 2793, 2880, 2940, 3040, 3136, 3192, 3360, 3420, 3528, 3584, 3648, 3724, 3840, 3920, 3990, 4032, 4256, 4410, 4480, 4560, 4608, 4655, 4704, 4788, 4864, 5040, 5320, 5376, 5472, 5586, 5760, 5880, 5985, 6080, 6272, 6384, 6720, 6840, 7056, 7296, 7448, 7680, 7840, 7980, 8064, 8379, 8512, 8820, 8960, 9120, 9310, 9408, 9576, 9728, 10080, 10640, 10752, 10944, 11172, 11520, 11760, 11970, 12160, 12544, 12768, 13440, 13680, 13965, 14112, 14592, 14896, 15680, 15960, 16128, 16758, 17024, 17640, 17920, 18240, 18620, 18816, 19152, 20160, 21280, 21888, 22344, 23040, 23520, 23940, 24320, 25088, 25536, 26880, 27360, 27930, 28224, 29184, 29792, 31360, 31920, 32256, 33516, 34048, 35280, 36480, 37240, 37632, 38304, 40320, 41895, 42560, 43776, 44688, 47040, 47880, 48640, 51072, 53760, 54720, 55860, 56448, 59584, 62720, 63840, 67032, 68096, 70560, 72960, 74480, 75264, 76608, 80640, 83790, 85120, 87552, 89376, 94080, 95760, 102144, 109440, 111720, 112896, 119168, 125440, 127680, 134064, 141120, 145920, 148960, 153216, 161280, 167580, 170240, 178752, 188160, 191520, 204288, 218880, 223440, 225792, 238336, 255360, 268128, 282240, 297920, 306432, 335160, 340480, 357504, 376320, 383040, 437760, 446880, 476672, 510720, 536256, 564480, 595840, 612864, 670320, 715008, 766080, 893760, 1021440, 1072512, 1128960, 1191680, 1340640, 1430016, 1532160, 1787520, 2145024, 2383360, 2681280, 3064320, 3575040, 4290048, 5362560, 7150080, 10725120, 21450240]

約数ペア:

[(1, 21450240), (2, 10725120), (3, 7150080), (4, 5362560), (5, 4290048), (6, 3575040), (7, 3064320), (8, 2681280), (9, 2383360), (10, 2145024), (12, 1787520), (14, 1532160), (15, 1430016), (16, 1340640), (18, 1191680), (19, 1128960), (20, 1072512), (21, 1021440), (24, 893760), (28, 766080), (30, 715008), (32, 670320), (35, 612864), (36, 595840), (38, 564480), (40, 536256), (42, 510720), (45, 476672), (48, 446880), (49, 437760), (56, 383040), (57, 376320), (60, 357504), (63, 340480), (64, 335160), (70, 306432), (72, 297920), (76, 282240), (80, 268128), (84, 255360), (90, 238336), (95, 225792), (96, 223440), (98, 218880), (105, 204288), (112, 191520), (114, 188160), (120, 178752), (126, 170240), (128, 167580), (133, 161280), (140, 153216), (144, 148960), (147, 145920), (152, 141120), (160, 134064), (168, 127680), (171, 125440), (180, 119168), (190, 112896), (192, 111720), (196, 109440), (210, 102144), (224, 95760), (228, 94080), (240, 89376), (245, 87552), (252, 85120), (256, 83790), (266, 80640), (280, 76608), (285, 75264), (288, 74480), (294, 72960), (304, 70560), (315, 68096), (320, 67032), (336, 63840), (342, 62720), (360, 59584), (380, 56448), (384, 55860), (392, 54720), (399, 53760), (420, 51072), (441, 48640), (448, 47880), (456, 47040), (480, 44688), (490, 43776), (504, 42560), (512, 41895), (532, 40320), (560, 38304), (570, 37632), (576, 37240), (588, 36480), (608, 35280), (630, 34048), (640, 33516), (665, 32256), (672, 31920), (684, 31360), (720, 29792), (735, 29184), (760, 28224), (768, 27930), (784, 27360), (798, 26880), (840, 25536), (855, 25088), (882, 24320), (896, 23940), (912, 23520), (931, 23040), (960, 22344), (980, 21888), (1008, 21280), (1064, 20160), (1120, 19152), (1140, 18816), (1152, 18620), (1176, 18240), (1197, 17920), (1216, 17640), (1260, 17024), (1280, 16758), (1330, 16128), (1344, 15960), (1368, 15680), (1440, 14896), (1470, 14592), (1520, 14112), (1536, 13965), (1568, 13680), (1596, 13440), (1680, 12768), (1710, 12544), (1764, 12160), (1792, 11970), (1824, 11760), (1862, 11520), (1920, 11172), (1960, 10944), (1995, 10752), (2016, 10640), (2128, 10080), (2205, 9728), (2240, 9576), (2280, 9408), (2304, 9310), (2352, 9120), (2394, 8960), (2432, 8820), (2520, 8512), (2560, 8379), (2660, 8064), (2688, 7980), (2736, 7840), (2793, 7680), (2880, 7448), (2940, 7296), (3040, 7056), (3136, 6840), (3192, 6720), (3360, 6384), (3420, 6272), (3528, 6080), (3584, 5985), (3648, 5880), (3724, 5760), (3840, 5586), (3920, 5472), (3990, 5376), (4032, 5320), (4256, 5040), (4410, 4864), (4480, 4788), (4560, 4704), (4608, 4655)]