72309680

素因数分解:

$2^4\times 5^1\times {\mathrm{903871}}^1$

素因数の和:903884

約数の個数: 20

約数和(自身を含む): 168120192

約数和(自身を除く): 95810512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 903871, 1807742, 3615484, 4519355, 7230968, 9038710, 14461936, 18077420, 36154840, 72309680]

約数ペア:

[(1, 72309680), (2, 36154840), (4, 18077420), (5, 14461936), (8, 9038710), (10, 7230968), (16, 4519355), (20, 3615484), (40, 1807742), (80, 903871)]