28705615

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:602

約数の個数: 16

約数和(自身を含む): 35108640

約数和(自身を除く): 6403025

約数列:

[1, 5, 89, 251, 257, 445, 1255, 1285, 22339, 22873, 64507, 111695, 114365, 322535, 5741123, 28705615]

約数ペア:

[(1, 28705615), (5, 5741123), (89, 322535), (251, 114365), (257, 111695), (445, 64507), (1255, 22873), (1285, 22339)]