20953640

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{863}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 47278080

約数和(自身を除く): 26324440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 863, 1214, 1726, 2428, 3035, 3452, 4315, 4856, 6070, 6904, 8630, 12140, 17260, 24280, 34520, 523841, 1047682, 2095364, 2619205, 4190728, 5238410, 10476820, 20953640]

約数ペア:

[(1, 20953640), (2, 10476820), (4, 5238410), (5, 4190728), (8, 2619205), (10, 2095364), (20, 1047682), (40, 523841), (607, 34520), (863, 24280), (1214, 17260), (1726, 12140), (2428, 8630), (3035, 6904), (3452, 6070), (4315, 4856)]