20608560

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:105

約数の個数: 320

約数和(自身を含む): 85708800

約数和(自身を除く): 65100240

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, 47, 48, 54, 56, 58, 60, 63, 70, 72, 80, 84, 87, 90, 94, 105, 108, 112, 116, 120, 126, 135, 140, 141, 144, 145, 168, 174, 180, 188, 189, 203, 210, 216, 232, 235, 240, 252, 261, 270, 280, 282, 290, 315, 329, 336, 348, 360, 376, 378, 406, 420, 423, 432, 435, 464, 470, 504, 522, 540, 560, 564, 580, 609, 630, 658, 696, 705, 720, 752, 756, 783, 812, 840, 846, 870, 940, 945, 987, 1008, 1015, 1044, 1080, 1128, 1160, 1218, 1260, 1269, 1305, 1316, 1363, 1392, 1410, 1512, 1566, 1624, 1645, 1680, 1692, 1740, 1827, 1880, 1890, 1974, 2030, 2088, 2115, 2160, 2256, 2320, 2436, 2520, 2538, 2610, 2632, 2726, 2820, 2961, 3024, 3045, 3132, 3248, 3290, 3384, 3480, 3654, 3760, 3780, 3915, 3948, 4060, 4089, 4176, 4230, 4872, 4935, 5040, 5076, 5220, 5264, 5452, 5481, 5640, 5922, 6090, 6264, 6345, 6580, 6768, 6815, 6960, 7308, 7560, 7830, 7896, 8120, 8178, 8460, 8883, 9135, 9541, 9744, 9870, 10152, 10440, 10904, 10962, 11280, 11844, 12180, 12267, 12528, 12690, 13160, 13630, 14616, 14805, 15120, 15660, 15792, 16240, 16356, 16920, 17766, 18270, 19082, 19740, 20304, 20445, 20880, 21808, 21924, 23688, 24360, 24534, 25380, 26320, 27260, 27405, 28623, 29232, 29610, 31320, 32712, 33840, 35532, 36540, 36801, 38164, 39480, 40890, 43848, 44415, 47376, 47705, 48720, 49068, 50760, 54520, 54810, 57246, 59220, 61335, 62640, 65424, 71064, 73080, 73602, 76328, 78960, 81780, 85869, 87696, 88830, 95410, 98136, 101520, 109040, 109620, 114492, 118440, 122670, 142128, 143115, 146160, 147204, 152656, 163560, 171738, 177660, 184005, 190820, 196272, 219240, 228984, 236880, 245340, 257607, 286230, 294408, 327120, 343476, 355320, 368010, 381640, 429345, 438480, 457968, 490680, 515214, 572460, 588816, 686952, 710640, 736020, 763280, 858690, 981360, 1030428, 1144920, 1288035, 1373904, 1472040, 1717380, 2060856, 2289840, 2576070, 2944080, 3434760, 4121712, 5152140, 6869520, 10304280, 20608560]

約数ペア:

[(1, 20608560), (2, 10304280), (3, 6869520), (4, 5152140), (5, 4121712), (6, 3434760), (7, 2944080), (8, 2576070), (9, 2289840), (10, 2060856), (12, 1717380), (14, 1472040), (15, 1373904), (16, 1288035), (18, 1144920), (20, 1030428), (21, 981360), (24, 858690), (27, 763280), (28, 736020), (29, 710640), (30, 686952), (35, 588816), (36, 572460), (40, 515214), (42, 490680), (45, 457968), (47, 438480), (48, 429345), (54, 381640), (56, 368010), (58, 355320), (60, 343476), (63, 327120), (70, 294408), (72, 286230), (80, 257607), (84, 245340), (87, 236880), (90, 228984), (94, 219240), (105, 196272), (108, 190820), (112, 184005), (116, 177660), (120, 171738), (126, 163560), (135, 152656), (140, 147204), (141, 146160), (144, 143115), (145, 142128), (168, 122670), (174, 118440), (180, 114492), (188, 109620), (189, 109040), (203, 101520), (210, 98136), (216, 95410), (232, 88830), (235, 87696), (240, 85869), (252, 81780), (261, 78960), (270, 76328), (280, 73602), (282, 73080), (290, 71064), (315, 65424), (329, 62640), (336, 61335), (348, 59220), (360, 57246), (376, 54810), (378, 54520), (406, 50760), (420, 49068), (423, 48720), (432, 47705), (435, 47376), (464, 44415), (470, 43848), (504, 40890), (522, 39480), (540, 38164), (560, 36801), (564, 36540), (580, 35532), (609, 33840), (630, 32712), (658, 31320), (696, 29610), (705, 29232), (720, 28623), (752, 27405), (756, 27260), (783, 26320), (812, 25380), (840, 24534), (846, 24360), (870, 23688), (940, 21924), (945, 21808), (987, 20880), (1008, 20445), (1015, 20304), (1044, 19740), (1080, 19082), (1128, 18270), (1160, 17766), (1218, 16920), (1260, 16356), (1269, 16240), (1305, 15792), (1316, 15660), (1363, 15120), (1392, 14805), (1410, 14616), (1512, 13630), (1566, 13160), (1624, 12690), (1645, 12528), (1680, 12267), (1692, 12180), (1740, 11844), (1827, 11280), (1880, 10962), (1890, 10904), (1974, 10440), (2030, 10152), (2088, 9870), (2115, 9744), (2160, 9541), (2256, 9135), (2320, 8883), (2436, 8460), (2520, 8178), (2538, 8120), (2610, 7896), (2632, 7830), (2726, 7560), (2820, 7308), (2961, 6960), (3024, 6815), (3045, 6768), (3132, 6580), (3248, 6345), (3290, 6264), (3384, 6090), (3480, 5922), (3654, 5640), (3760, 5481), (3780, 5452), (3915, 5264), (3948, 5220), (4060, 5076), (4089, 5040), (4176, 4935), (4230, 4872)]