18108375

素因数分解:

$3^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1123}}^1$

素因数の和:1184

約数の個数: 32

約数和(自身を含む): 30860544

約数和(自身を除く): 12752169

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 375, 645, 1075, 1123, 3225, 3369, 5375, 5615, 16125, 16845, 28075, 48289, 84225, 140375, 144867, 241445, 421125, 724335, 1207225, 3621675, 6036125, 18108375]

約数ペア:

[(1, 18108375), (3, 6036125), (5, 3621675), (15, 1207225), (25, 724335), (43, 421125), (75, 241445), (125, 144867), (129, 140375), (215, 84225), (375, 48289), (645, 28075), (1075, 16845), (1123, 16125), (3225, 5615), (3369, 5375)]