15818920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1049}}^1$

素因数の和:1102

約数の個数: 64

約数和(自身を含む): 39690000

約数和(自身を除く): 23871080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1049, 1160, 1508, 1885, 2098, 3016, 3770, 4196, 5245, 7540, 8392, 10490, 13637, 15080, 20980, 27274, 30421, 41960, 54548, 60842, 68185, 109096, 121684, 136370, 152105, 243368, 272740, 304210, 395473, 545480, 608420, 790946, 1216840, 1581892, 1977365, 3163784, 3954730, 7909460, 15818920]

約数ペア:

[(1, 15818920), (2, 7909460), (4, 3954730), (5, 3163784), (8, 1977365), (10, 1581892), (13, 1216840), (20, 790946), (26, 608420), (29, 545480), (40, 395473), (52, 304210), (58, 272740), (65, 243368), (104, 152105), (116, 136370), (130, 121684), (145, 109096), (232, 68185), (260, 60842), (290, 54548), (377, 41960), (520, 30421), (580, 27274), (754, 20980), (1049, 15080), (1160, 13637), (1508, 10490), (1885, 8392), (2098, 7540), (3016, 5245), (3770, 4196)]