20123625

素因数分解:

$3^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 33875712

約数和(自身を除く): 13752087

約数列:

[1, 3, 5, 15, 25, 75, 103, 125, 309, 375, 515, 521, 1545, 1563, 2575, 2605, 7725, 7815, 12875, 13025, 38625, 39075, 53663, 65125, 160989, 195375, 268315, 804945, 1341575, 4024725, 6707875, 20123625]

約数ペア:

[(1, 20123625), (3, 6707875), (5, 4024725), (15, 1341575), (25, 804945), (75, 268315), (103, 195375), (125, 160989), (309, 65125), (375, 53663), (515, 39075), (521, 38625), (1545, 13025), (1563, 12875), (2575, 7815), (2605, 7725)]