18205125

素因数分解:

$3^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1129}}^1$

素因数の和:1190

約数の個数: 32

約数和(自身を含む): 31025280

約数和(自身を除く): 12820155

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 375, 645, 1075, 1129, 3225, 3387, 5375, 5645, 16125, 16935, 28225, 48547, 84675, 141125, 145641, 242735, 423375, 728205, 1213675, 3641025, 6068375, 18205125]

約数ペア:

[(1, 18205125), (3, 6068375), (5, 3641025), (15, 1213675), (25, 728205), (43, 423375), (75, 242735), (125, 145641), (129, 141125), (215, 84675), (375, 48547), (645, 28225), (1075, 16935), (1129, 16125), (3225, 5645), (3387, 5375)]