68639080

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{8623}}^1$

素因数の和:8833

約数の個数: 32

約数和(自身を含む): 155232000

約数和(自身を除く): 86592920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 8623, 17246, 34492, 43115, 68984, 86230, 172460, 344920, 1715977, 3431954, 6863908, 8579885, 13727816, 17159770, 34319540, 68639080]

約数ペア:

[(1, 68639080), (2, 34319540), (4, 17159770), (5, 13727816), (8, 8579885), (10, 6863908), (20, 3431954), (40, 1715977), (199, 344920), (398, 172460), (796, 86230), (995, 68984), (1592, 43115), (1990, 34492), (3980, 17246), (7960, 8623)]