85212920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163871}}^1$

素因数の和:163895

約数の個数: 32

約数和(自身を含む): 206478720

約数和(自身を除く): 121265800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 163871, 327742, 655484, 819355, 1310968, 1638710, 2130323, 3277420, 4260646, 6554840, 8521292, 10651615, 17042584, 21303230, 42606460, 85212920]

約数ペア:

[(1, 85212920), (2, 42606460), (4, 21303230), (5, 17042584), (8, 10651615), (10, 8521292), (13, 6554840), (20, 4260646), (26, 3277420), (40, 2130323), (52, 1638710), (65, 1310968), (104, 819355), (130, 655484), (260, 327742), (520, 163871)]