129805240

素因数分解:

$2^3\times 5^1\times {\mathrm{3245131}}^1$

素因数の和:3245142

約数の個数: 16

約数和(自身を含む): 292061880

約数和(自身を除く): 162256640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3245131, 6490262, 12980524, 16225655, 25961048, 32451310, 64902620, 129805240]

約数ペア:

[(1, 129805240), (2, 64902620), (4, 32451310), (5, 25961048), (8, 16225655), (10, 12980524), (20, 6490262), (40, 3245131)]