90813680

素因数分解:

$2^4\times 5^1\times {\mathrm{1135171}}^1$

素因数の和:1135184

約数の個数: 20

約数和(自身を含む): 211141992

約数和(自身を除く): 120328312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1135171, 2270342, 4540684, 5675855, 9081368, 11351710, 18162736, 22703420, 45406840, 90813680]

約数ペア:

[(1, 90813680), (2, 45406840), (4, 22703420), (5, 18162736), (8, 11351710), (10, 9081368), (16, 5675855), (20, 4540684), (40, 2270342), (80, 1135171)]