1277323840

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7489}}^1$

素因数の和:7560

約数の個数: 112

約数和(自身を含む): 3355939440

約数和(自身を除く): 2078615600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 64, 65, 80, 82, 104, 130, 160, 164, 205, 208, 260, 320, 328, 410, 416, 520, 533, 656, 820, 832, 1040, 1066, 1312, 1640, 2080, 2132, 2624, 2665, 3280, 4160, 4264, 5330, 6560, 7489, 8528, 10660, 13120, 14978, 17056, 21320, 29956, 34112, 37445, 42640, 59912, 74890, 85280, 97357, 119824, 149780, 170560, 194714, 239648, 299560, 307049, 389428, 479296, 486785, 599120, 614098, 778856, 973570, 1198240, 1228196, 1535245, 1557712, 1947140, 2396480, 2456392, 3070490, 3115424, 3894280, 3991637, 4912784, 6140980, 6230848, 7788560, 7983274, 9825568, 12281960, 15577120, 15966548, 19651136, 19958185, 24563920, 31154240, 31933096, 39916370, 49127840, 63866192, 79832740, 98255680, 127732384, 159665480, 255464768, 319330960, 638661920, 1277323840]

約数ペア:

[(1, 1277323840), (2, 638661920), (4, 319330960), (5, 255464768), (8, 159665480), (10, 127732384), (13, 98255680), (16, 79832740), (20, 63866192), (26, 49127840), (32, 39916370), (40, 31933096), (41, 31154240), (52, 24563920), (64, 19958185), (65, 19651136), (80, 15966548), (82, 15577120), (104, 12281960), (130, 9825568), (160, 7983274), (164, 7788560), (205, 6230848), (208, 6140980), (260, 4912784), (320, 3991637), (328, 3894280), (410, 3115424), (416, 3070490), (520, 2456392), (533, 2396480), (656, 1947140), (820, 1557712), (832, 1535245), (1040, 1228196), (1066, 1198240), (1312, 973570), (1640, 778856), (2080, 614098), (2132, 599120), (2624, 486785), (2665, 479296), (3280, 389428), (4160, 307049), (4264, 299560), (5330, 239648), (6560, 194714), (7489, 170560), (8528, 149780), (10660, 119824), (13120, 97357), (14978, 85280), (17056, 74890), (21320, 59912), (29956, 42640), (34112, 37445)]