28865915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 39989376

約数和(自身を除く): 11123461

約数列:

[1, 5, 13, 17, 65, 85, 151, 173, 221, 755, 865, 1105, 1963, 2249, 2567, 2941, 9815, 11245, 12835, 14705, 26123, 33371, 38233, 130615, 166855, 191165, 339599, 444091, 1697995, 2220455, 5773183, 28865915]

約数ペア:

[(1, 28865915), (5, 5773183), (13, 2220455), (17, 1697995), (65, 444091), (85, 339599), (151, 191165), (173, 166855), (221, 130615), (755, 38233), (865, 33371), (1105, 26123), (1963, 14705), (2249, 12835), (2567, 11245), (2941, 9815)]