1680667040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2$

素因数の和:156

約数の個数: 288

約数和(自身を含む): 4808522880

約数和(自身を除く): 3127855840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 23, 26, 32, 38, 40, 43, 46, 52, 65, 76, 80, 86, 92, 95, 104, 115, 130, 152, 160, 172, 184, 190, 208, 215, 230, 247, 260, 299, 304, 344, 368, 380, 416, 430, 437, 460, 494, 520, 559, 598, 608, 688, 736, 760, 817, 860, 874, 920, 988, 989, 1040, 1118, 1196, 1235, 1376, 1495, 1520, 1634, 1720, 1748, 1840, 1849, 1976, 1978, 2080, 2185, 2236, 2392, 2470, 2795, 2990, 3040, 3268, 3440, 3496, 3680, 3698, 3952, 3956, 4085, 4370, 4472, 4784, 4940, 4945, 5590, 5681, 5980, 6536, 6880, 6992, 7396, 7904, 7912, 8170, 8740, 8944, 9245, 9568, 9880, 9890, 10621, 11180, 11362, 11960, 12857, 13072, 13984, 14792, 15824, 16340, 17480, 17888, 18490, 18791, 19760, 19780, 21242, 22360, 22724, 23920, 24037, 25714, 26144, 28405, 29584, 31648, 32680, 34960, 35131, 36980, 37582, 39520, 39560, 42484, 42527, 44720, 45448, 47840, 48074, 51428, 53105, 56810, 59168, 64285, 65360, 69920, 70262, 73960, 75164, 79120, 84968, 85054, 89440, 90896, 93955, 96148, 102856, 106210, 113620, 120185, 128570, 130720, 140524, 147920, 150328, 158240, 169936, 170108, 175655, 181792, 187910, 192296, 205712, 212420, 212635, 227240, 240370, 244283, 257140, 281048, 295840, 300656, 339872, 340216, 351310, 375820, 384592, 411424, 424840, 425270, 454480, 456703, 480740, 488566, 514280, 552851, 562096, 601312, 680432, 702620, 751640, 769184, 808013, 849680, 850540, 908960, 913406, 961480, 977132, 1028560, 1105702, 1124192, 1221415, 1360864, 1405240, 1503280, 1616026, 1699360, 1701080, 1826812, 1922960, 1954264, 2057120, 2211404, 2283515, 2442830, 2764255, 2810480, 3006560, 3232052, 3402160, 3653624, 3845920, 3908528, 4040065, 4422808, 4567030, 4885660, 5528510, 5620960, 6464104, 6804320, 7307248, 7817056, 8080130, 8845616, 9134060, 9771320, 10504169, 11057020, 12928208, 14614496, 16160260, 17691232, 18268120, 19542640, 21008338, 22114040, 25856416, 32320520, 36536240, 39085280, 42016676, 44228080, 52520845, 64641040, 73072480, 84033352, 88456160, 105041690, 129282080, 168066704, 210083380, 336133408, 420166760, 840333520, 1680667040]

約数ペア:

[(1, 1680667040), (2, 840333520), (4, 420166760), (5, 336133408), (8, 210083380), (10, 168066704), (13, 129282080), (16, 105041690), (19, 88456160), (20, 84033352), (23, 73072480), (26, 64641040), (32, 52520845), (38, 44228080), (40, 42016676), (43, 39085280), (46, 36536240), (52, 32320520), (65, 25856416), (76, 22114040), (80, 21008338), (86, 19542640), (92, 18268120), (95, 17691232), (104, 16160260), (115, 14614496), (130, 12928208), (152, 11057020), (160, 10504169), (172, 9771320), (184, 9134060), (190, 8845616), (208, 8080130), (215, 7817056), (230, 7307248), (247, 6804320), (260, 6464104), (299, 5620960), (304, 5528510), (344, 4885660), (368, 4567030), (380, 4422808), (416, 4040065), (430, 3908528), (437, 3845920), (460, 3653624), (494, 3402160), (520, 3232052), (559, 3006560), (598, 2810480), (608, 2764255), (688, 2442830), (736, 2283515), (760, 2211404), (817, 2057120), (860, 1954264), (874, 1922960), (920, 1826812), (988, 1701080), (989, 1699360), (1040, 1616026), (1118, 1503280), (1196, 1405240), (1235, 1360864), (1376, 1221415), (1495, 1124192), (1520, 1105702), (1634, 1028560), (1720, 977132), (1748, 961480), (1840, 913406), (1849, 908960), (1976, 850540), (1978, 849680), (2080, 808013), (2185, 769184), (2236, 751640), (2392, 702620), (2470, 680432), (2795, 601312), (2990, 562096), (3040, 552851), (3268, 514280), (3440, 488566), (3496, 480740), (3680, 456703), (3698, 454480), (3952, 425270), (3956, 424840), (4085, 411424), (4370, 384592), (4472, 375820), (4784, 351310), (4940, 340216), (4945, 339872), (5590, 300656), (5681, 295840), (5980, 281048), (6536, 257140), (6880, 244283), (6992, 240370), (7396, 227240), (7904, 212635), (7912, 212420), (8170, 205712), (8740, 192296), (8944, 187910), (9245, 181792), (9568, 175655), (9880, 170108), (9890, 169936), (10621, 158240), (11180, 150328), (11362, 147920), (11960, 140524), (12857, 130720), (13072, 128570), (13984, 120185), (14792, 113620), (15824, 106210), (16340, 102856), (17480, 96148), (17888, 93955), (18490, 90896), (18791, 89440), (19760, 85054), (19780, 84968), (21242, 79120), (22360, 75164), (22724, 73960), (23920, 70262), (24037, 69920), (25714, 65360), (26144, 64285), (28405, 59168), (29584, 56810), (31648, 53105), (32680, 51428), (34960, 48074), (35131, 47840), (36980, 45448), (37582, 44720), (39520, 42527), (39560, 42484)]