138008495

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{157}}^1\times {\mathrm{487}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 176259744

約数和(自身を除く): 38251249

約数列:

[1, 5, 19, 95, 157, 361, 487, 785, 1805, 2435, 2983, 9253, 14915, 46265, 56677, 76459, 175807, 283385, 382295, 879035, 1452721, 7263605, 27601699, 138008495]

約数ペア:

[(1, 138008495), (5, 27601699), (19, 7263605), (95, 1452721), (157, 879035), (361, 382295), (487, 283385), (785, 175807), (1805, 76459), (2435, 56677), (2983, 46265), (9253, 14915)]