64420265

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{10891}}^1$

素因数の和:10929

約数の個数: 24

約数和(自身を含む): 95675328

約数和(自身を除く): 31255063

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 5915, 10891, 54455, 76237, 141583, 381185, 707915, 991081, 1840579, 4955405, 9202895, 12884053, 64420265]

約数ペア:

[(1, 64420265), (5, 12884053), (7, 9202895), (13, 4955405), (35, 1840579), (65, 991081), (91, 707915), (169, 381185), (455, 141583), (845, 76237), (1183, 54455), (5915, 10891)]