81207815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{2243}}^1$

素因数の和:2818

約数の個数: 16

約数和(自身を含む): 105180768

約数和(自身を除く): 23972953

約数列:

[1, 5, 13, 65, 557, 2243, 2785, 7241, 11215, 29159, 36205, 145795, 1249351, 6246755, 16241563, 81207815]

約数ペア:

[(1, 81207815), (5, 16241563), (13, 6246755), (65, 1249351), (557, 145795), (2243, 36205), (2785, 29159), (7241, 11215)]