55559920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1370

約数の個数: 80

約数和(自身を含む): 142615872

約数和(自身を除く): 87055952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 520, 533, 656, 820, 1040, 1066, 1303, 1640, 2132, 2606, 2665, 3280, 4264, 5212, 5330, 6515, 8528, 10424, 10660, 13030, 16939, 20848, 21320, 26060, 33878, 42640, 52120, 53423, 67756, 84695, 104240, 106846, 135512, 169390, 213692, 267115, 271024, 338780, 427384, 534230, 677560, 694499, 854768, 1068460, 1355120, 1388998, 2136920, 2777996, 3472495, 4273840, 5555992, 6944990, 11111984, 13889980, 27779960, 55559920]

約数ペア:

[(1, 55559920), (2, 27779960), (4, 13889980), (5, 11111984), (8, 6944990), (10, 5555992), (13, 4273840), (16, 3472495), (20, 2777996), (26, 2136920), (40, 1388998), (41, 1355120), (52, 1068460), (65, 854768), (80, 694499), (82, 677560), (104, 534230), (130, 427384), (164, 338780), (205, 271024), (208, 267115), (260, 213692), (328, 169390), (410, 135512), (520, 106846), (533, 104240), (656, 84695), (820, 67756), (1040, 53423), (1066, 52120), (1303, 42640), (1640, 33878), (2132, 26060), (2606, 21320), (2665, 20848), (3280, 16939), (4264, 13030), (5212, 10660), (5330, 10424), (6515, 8528)]