1640288740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1\times {\mathrm{9551}}^1$

素因数の和:9868

約数の個数: 48

約数和(自身を含む): 3568932864

約数和(自身を除く): 1928644124

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 277, 310, 554, 620, 1108, 1385, 2770, 5540, 8587, 9551, 17174, 19102, 34348, 38204, 42935, 47755, 85870, 95510, 171740, 191020, 296081, 592162, 1184324, 1480405, 2645627, 2960810, 5291254, 5921620, 10582508, 13228135, 26456270, 52912540, 82014437, 164028874, 328057748, 410072185, 820144370, 1640288740]

約数ペア:

[(1, 1640288740), (2, 820144370), (4, 410072185), (5, 328057748), (10, 164028874), (20, 82014437), (31, 52912540), (62, 26456270), (124, 13228135), (155, 10582508), (277, 5921620), (310, 5291254), (554, 2960810), (620, 2645627), (1108, 1480405), (1385, 1184324), (2770, 592162), (5540, 296081), (8587, 191020), (9551, 171740), (17174, 95510), (19102, 85870), (34348, 47755), (38204, 42935)]