18025475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1499}}^1$

素因数の和:1559

約数の個数: 24

約数和(自身を含む): 24738000

約数和(自身を除く): 6712525

約数列:

[1, 5, 13, 25, 37, 65, 185, 325, 481, 925, 1499, 2405, 7495, 12025, 19487, 37475, 55463, 97435, 277315, 487175, 721019, 1386575, 3605095, 18025475]

約数ペア:

[(1, 18025475), (5, 3605095), (13, 1386575), (25, 721019), (37, 487175), (65, 277315), (185, 97435), (325, 55463), (481, 37475), (925, 19487), (1499, 12025), (2405, 7495)]