28033640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9871}}^1$

素因数の和:9953

約数の個数: 32

約数和(自身を含む): 63970560

約数和(自身を除く): 35936920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 9871, 19742, 39484, 49355, 78968, 98710, 197420, 394840, 700841, 1401682, 2803364, 3504205, 5606728, 7008410, 14016820, 28033640]

約数ペア:

[(1, 28033640), (2, 14016820), (4, 7008410), (5, 5606728), (8, 3504205), (10, 2803364), (20, 1401682), (40, 700841), (71, 394840), (142, 197420), (284, 98710), (355, 78968), (568, 49355), (710, 39484), (1420, 19742), (2840, 9871)]