401023305

素因数分解:

$3^4\times 5^1\times {\mathrm{990181}}^1$

素因数の和:990198

約数の個数: 20

約数和(自身を含む): 718872132

約数和(自身を除く): 317848827

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 990181, 2970543, 4950905, 8911629, 14852715, 26734887, 44558145, 80204661, 133674435, 401023305]

約数ペア:

[(1, 401023305), (3, 133674435), (5, 80204661), (9, 44558145), (15, 26734887), (27, 14852715), (45, 8911629), (81, 4950905), (135, 2970543), (405, 990181)]