128425735

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{857}}^1$

素因数の和:963

約数の個数: 32

約数和(自身を含む): 171243072

約数和(自身を除く): 42817337

約数列:

[1, 5, 17, 41, 43, 85, 205, 215, 697, 731, 857, 1763, 3485, 3655, 4285, 8815, 14569, 29971, 35137, 36851, 72845, 149855, 175685, 184255, 597329, 626467, 1510891, 2986645, 3132335, 7554455, 25685147, 128425735]

約数ペア:

[(1, 128425735), (5, 25685147), (17, 7554455), (41, 3132335), (43, 2986645), (85, 1510891), (205, 626467), (215, 597329), (697, 184255), (731, 175685), (857, 149855), (1763, 72845), (3485, 36851), (3655, 35137), (4285, 29971), (8815, 14569)]