129519553640

素因数分解:

$2^3\times 5^1\times {\mathrm{3237988841}}^1$

素因数の和:3237988852

約数の個数: 16

約数和(自身を含む): 291418995780

約数和(自身を除く): 161899442140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3237988841, 6475977682, 12951955364, 16189944205, 25903910728, 32379888410, 64759776820, 129519553640]

約数ペア:

[(1, 129519553640), (2, 64759776820), (4, 32379888410), (5, 25903910728), (8, 16189944205), (10, 12951955364), (20, 6475977682), (40, 3237988841)]