78837680

素因数分解:

$2^4\times 5^1\times {\mathrm{985471}}^1$

素因数の和:985484

約数の個数: 20

約数和(自身を含む): 183297792

約数和(自身を除く): 104460112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 985471, 1970942, 3941884, 4927355, 7883768, 9854710, 15767536, 19709420, 39418840, 78837680]

約数ペア:

[(1, 78837680), (2, 39418840), (4, 19709420), (5, 15767536), (8, 9854710), (10, 7883768), (16, 4927355), (20, 3941884), (40, 1970942), (80, 985471)]