15770625

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 28340928

約数和(自身を除く): 12570303

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 625, 647, 975, 1625, 1875, 1941, 3235, 4875, 8125, 8411, 9705, 16175, 24375, 25233, 42055, 48525, 80875, 126165, 210275, 242625, 404375, 630825, 1051375, 1213125, 3154125, 5256875, 15770625]

約数ペア:

[(1, 15770625), (3, 5256875), (5, 3154125), (13, 1213125), (15, 1051375), (25, 630825), (39, 404375), (65, 242625), (75, 210275), (125, 126165), (195, 80875), (325, 48525), (375, 42055), (625, 25233), (647, 24375), (975, 16175), (1625, 9705), (1875, 8411), (1941, 8125), (3235, 4875)]