156980780680

素因数分解:

$2^3\times 5^1\times {\mathrm{3924519517}}^1$

素因数の和:3924519528

約数の個数: 16

約数和(自身を含む): 353206756620

約数和(自身を除く): 196225975940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3924519517, 7849039034, 15698078068, 19622597585, 31396156136, 39245195170, 78490390340, 156980780680]

約数ペア:

[(1, 156980780680), (2, 78490390340), (4, 39245195170), (5, 31396156136), (8, 19622597585), (10, 15698078068), (20, 7849039034), (40, 3924519517)]