85087820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{59921}}^1$

素因数の和:60001

約数の個数: 24

約数和(自身を含む): 181204128

約数和(自身を除く): 96116308

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 59921, 119842, 239684, 299605, 599210, 1198420, 4254391, 8508782, 17017564, 21271955, 42543910, 85087820]

約数ペア:

[(1, 85087820), (2, 42543910), (4, 21271955), (5, 17017564), (10, 8508782), (20, 4254391), (71, 1198420), (142, 599210), (284, 299605), (355, 239684), (710, 119842), (1420, 59921)]