61861820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{20759}}^1$

素因数の和:20917

約数の個数: 24

約数和(自身を含む): 130788000

約数和(自身を除く): 68926180

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 20759, 41518, 83036, 103795, 207590, 415180, 3093091, 6186182, 12372364, 15465455, 30930910, 61861820]

約数ペア:

[(1, 61861820), (2, 30930910), (4, 15465455), (5, 12372364), (10, 6186182), (20, 3093091), (149, 415180), (298, 207590), (596, 103795), (745, 83036), (1490, 41518), (2980, 20759)]