320139260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{11491}}^1$

素因数の和:11706

約数の個数: 48

約数和(自身を含む): 772262400

約数和(自身を除く): 452123140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 11491, 13930, 22982, 27860, 45964, 57455, 80437, 114910, 160874, 229820, 321748, 402185, 804370, 1608740, 2286709, 4573418, 9146836, 11433545, 16006963, 22867090, 32013926, 45734180, 64027852, 80034815, 160069630, 320139260]

約数ペア:

[(1, 320139260), (2, 160069630), (4, 80034815), (5, 64027852), (7, 45734180), (10, 32013926), (14, 22867090), (20, 16006963), (28, 11433545), (35, 9146836), (70, 4573418), (140, 2286709), (199, 1608740), (398, 804370), (796, 402185), (995, 321748), (1393, 229820), (1990, 160874), (2786, 114910), (3980, 80437), (5572, 57455), (6965, 45964), (11491, 27860), (13930, 22982)]