1688895520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:915

約数の個数: 192

約数和(自身を含む): 4593625344

約数和(自身を除く): 2904729824

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 43, 46, 52, 65, 80, 86, 92, 104, 115, 130, 160, 172, 184, 208, 215, 230, 260, 299, 344, 368, 416, 430, 460, 520, 559, 598, 688, 736, 821, 860, 920, 989, 1040, 1118, 1196, 1376, 1495, 1642, 1720, 1840, 1978, 2080, 2236, 2392, 2795, 2990, 3284, 3440, 3680, 3956, 4105, 4472, 4784, 4945, 5590, 5980, 6568, 6880, 7912, 8210, 8944, 9568, 9890, 10673, 11180, 11960, 12857, 13136, 15824, 16420, 17888, 18883, 19780, 21346, 22360, 23920, 25714, 26272, 31648, 32840, 35303, 37766, 39560, 42692, 44720, 47840, 51428, 53365, 64285, 65680, 70606, 75532, 79120, 85384, 89440, 94415, 102856, 106730, 128570, 131360, 141212, 151064, 158240, 170768, 176515, 188830, 205712, 213460, 245479, 257140, 282424, 302128, 341536, 353030, 377660, 411424, 426920, 458939, 490958, 514280, 564848, 604256, 706060, 755320, 811969, 853840, 917878, 981916, 1028560, 1129696, 1227395, 1412120, 1510640, 1623938, 1707680, 1835756, 1963832, 2057120, 2294695, 2454790, 2824240, 3021280, 3247876, 3671512, 3927664, 4059845, 4589390, 4909580, 5648480, 6495752, 7343024, 7855328, 8119690, 9178780, 9819160, 10555597, 12991504, 14686048, 16239380, 18357560, 19638320, 21111194, 25983008, 32478760, 36715120, 39276640, 42222388, 52777985, 64957520, 73430240, 84444776, 105555970, 129915040, 168889552, 211111940, 337779104, 422223880, 844447760, 1688895520]

約数ペア:

[(1, 1688895520), (2, 844447760), (4, 422223880), (5, 337779104), (8, 211111940), (10, 168889552), (13, 129915040), (16, 105555970), (20, 84444776), (23, 73430240), (26, 64957520), (32, 52777985), (40, 42222388), (43, 39276640), (46, 36715120), (52, 32478760), (65, 25983008), (80, 21111194), (86, 19638320), (92, 18357560), (104, 16239380), (115, 14686048), (130, 12991504), (160, 10555597), (172, 9819160), (184, 9178780), (208, 8119690), (215, 7855328), (230, 7343024), (260, 6495752), (299, 5648480), (344, 4909580), (368, 4589390), (416, 4059845), (430, 3927664), (460, 3671512), (520, 3247876), (559, 3021280), (598, 2824240), (688, 2454790), (736, 2294695), (821, 2057120), (860, 1963832), (920, 1835756), (989, 1707680), (1040, 1623938), (1118, 1510640), (1196, 1412120), (1376, 1227395), (1495, 1129696), (1642, 1028560), (1720, 981916), (1840, 917878), (1978, 853840), (2080, 811969), (2236, 755320), (2392, 706060), (2795, 604256), (2990, 564848), (3284, 514280), (3440, 490958), (3680, 458939), (3956, 426920), (4105, 411424), (4472, 377660), (4784, 353030), (4945, 341536), (5590, 302128), (5980, 282424), (6568, 257140), (6880, 245479), (7912, 213460), (8210, 205712), (8944, 188830), (9568, 176515), (9890, 170768), (10673, 158240), (11180, 151064), (11960, 141212), (12857, 131360), (13136, 128570), (15824, 106730), (16420, 102856), (17888, 94415), (18883, 89440), (19780, 85384), (21346, 79120), (22360, 75532), (23920, 70606), (25714, 65680), (26272, 64285), (31648, 53365), (32840, 51428), (35303, 47840), (37766, 44720), (39560, 42692)]