28413680

素因数分解:

$2^4\times 5^1\times {\mathrm{355171}}^1$

素因数の和:355184

約数の個数: 20

約数和(自身を含む): 66061992

約数和(自身を除く): 37648312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355171, 710342, 1420684, 1775855, 2841368, 3551710, 5682736, 7103420, 14206840, 28413680]

約数ペア:

[(1, 28413680), (2, 14206840), (4, 7103420), (5, 5682736), (8, 3551710), (10, 2841368), (16, 1775855), (20, 1420684), (40, 710342), (80, 355171)]