64684880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^2$

素因数の和:145

約数の個数: 120

約数和(自身を含む): 170494296

約数和(自身を除く): 105809416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 41, 52, 65, 74, 80, 82, 104, 130, 148, 164, 185, 205, 208, 260, 296, 328, 370, 410, 481, 520, 533, 592, 656, 740, 820, 962, 1040, 1066, 1480, 1517, 1640, 1681, 1924, 2132, 2405, 2665, 2960, 3034, 3280, 3362, 3848, 4264, 4810, 5330, 6068, 6724, 7585, 7696, 8405, 8528, 9620, 10660, 12136, 13448, 15170, 16810, 19240, 19721, 21320, 21853, 24272, 26896, 30340, 33620, 38480, 39442, 42640, 43706, 60680, 62197, 67240, 78884, 87412, 98605, 109265, 121360, 124394, 134480, 157768, 174824, 197210, 218530, 248788, 310985, 315536, 349648, 394420, 437060, 497576, 621970, 788840, 808561, 874120, 995152, 1243940, 1577680, 1617122, 1748240, 2487880, 3234244, 4042805, 4975760, 6468488, 8085610, 12936976, 16171220, 32342440, 64684880]

約数ペア:

[(1, 64684880), (2, 32342440), (4, 16171220), (5, 12936976), (8, 8085610), (10, 6468488), (13, 4975760), (16, 4042805), (20, 3234244), (26, 2487880), (37, 1748240), (40, 1617122), (41, 1577680), (52, 1243940), (65, 995152), (74, 874120), (80, 808561), (82, 788840), (104, 621970), (130, 497576), (148, 437060), (164, 394420), (185, 349648), (205, 315536), (208, 310985), (260, 248788), (296, 218530), (328, 197210), (370, 174824), (410, 157768), (481, 134480), (520, 124394), (533, 121360), (592, 109265), (656, 98605), (740, 87412), (820, 78884), (962, 67240), (1040, 62197), (1066, 60680), (1480, 43706), (1517, 42640), (1640, 39442), (1681, 38480), (1924, 33620), (2132, 30340), (2405, 26896), (2665, 24272), (2960, 21853), (3034, 21320), (3280, 19721), (3362, 19240), (3848, 16810), (4264, 15170), (4810, 13448), (5330, 12136), (6068, 10660), (6724, 9620), (7585, 8528), (7696, 8405)]