90657625

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 118778400

約数和(自身を除く): 28120775

約数列:

[1, 5, 25, 29, 89, 125, 145, 281, 445, 725, 1405, 2225, 2581, 3625, 7025, 8149, 11125, 12905, 25009, 35125, 40745, 64525, 125045, 203725, 322625, 625225, 725261, 1018625, 3126125, 3626305, 18131525, 90657625]

約数ペア:

[(1, 90657625), (5, 18131525), (25, 3626305), (29, 3126125), (89, 1018625), (125, 725261), (145, 625225), (281, 322625), (445, 203725), (725, 125045), (1405, 64525), (2225, 40745), (2581, 35125), (3625, 25009), (7025, 12905), (8149, 11125)]