87640161

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{757}}^1$

素因数の和:953

約数の個数: 32

約数和(自身を含む): 138259200

約数和(自身を除く): 50619039

約数列:

[1, 3, 7, 21, 37, 111, 149, 259, 447, 757, 777, 1043, 2271, 3129, 5299, 5513, 15897, 16539, 28009, 38591, 84027, 112793, 115773, 196063, 338379, 588189, 789551, 2368653, 4173341, 12520023, 29213387, 87640161]

約数ペア:

[(1, 87640161), (3, 29213387), (7, 12520023), (21, 4173341), (37, 2368653), (111, 789551), (149, 588189), (259, 338379), (447, 196063), (757, 115773), (777, 112793), (1043, 84027), (2271, 38591), (3129, 28009), (5299, 16539), (5513, 15897)]