900900005

素因数分解:

$5^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1\times {\mathrm{3079}}^1$

素因数の和:3644

約数の個数: 16

約数和(自身を含む): 1091798400

約数和(自身を除く): 190898395

約数列:

[1, 5, 139, 421, 695, 2105, 3079, 15395, 58519, 292595, 427981, 1296259, 2139905, 6481295, 180180001, 900900005]

約数ペア:

[(1, 900900005), (5, 180180001), (139, 6481295), (421, 2139905), (695, 1296259), (2105, 427981), (3079, 292595), (15395, 58519)]