85244420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137491}}^1$

素因数の和:137531

約数の個数: 24

約数和(自身を含む): 184789248

約数和(自身を除く): 99544828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 137491, 274982, 549964, 687455, 1374910, 2749820, 4262221, 8524442, 17048884, 21311105, 42622210, 85244420]

約数ペア:

[(1, 85244420), (2, 42622210), (4, 21311105), (5, 17048884), (10, 8524442), (20, 4262221), (31, 2749820), (62, 1374910), (124, 687455), (155, 549964), (310, 274982), (620, 137491)]