139788080

素因数分解:

$2^4\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{1399}}^1$

素因数の和:2661

約数の個数: 40

約数和(自身を含む): 325500000

約数和(自身を除く): 185711920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1249, 1399, 2498, 2798, 4996, 5596, 6245, 6995, 9992, 11192, 12490, 13990, 19984, 22384, 24980, 27980, 49960, 55960, 99920, 111920, 1747351, 3494702, 6989404, 8736755, 13978808, 17473510, 27957616, 34947020, 69894040, 139788080]

約数ペア:

[(1, 139788080), (2, 69894040), (4, 34947020), (5, 27957616), (8, 17473510), (10, 13978808), (16, 8736755), (20, 6989404), (40, 3494702), (80, 1747351), (1249, 111920), (1399, 99920), (2498, 55960), (2798, 49960), (4996, 27980), (5596, 24980), (6245, 22384), (6995, 19984), (9992, 13990), (11192, 12490)]