15159625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 21490560

約数和(自身を除く): 6330935

約数列:

[1, 5, 13, 19, 25, 65, 95, 125, 247, 325, 475, 491, 1235, 1625, 2375, 2455, 6175, 6383, 9329, 12275, 30875, 31915, 46645, 61375, 121277, 159575, 233225, 606385, 797875, 1166125, 3031925, 15159625]

約数ペア:

[(1, 15159625), (5, 3031925), (13, 1166125), (19, 797875), (25, 606385), (65, 233225), (95, 159575), (125, 121277), (247, 61375), (325, 46645), (475, 31915), (491, 30875), (1235, 12275), (1625, 9329), (2375, 6383), (2455, 6175)]