137431640

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{23059}}^1$

素因数の和:23219

約数の個数: 32

約数和(自身を含む): 311310000

約数和(自身を除く): 173878360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 23059, 46118, 92236, 115295, 184472, 230590, 461180, 922360, 3435791, 6871582, 13743164, 17178955, 27486328, 34357910, 68715820, 137431640]

約数ペア:

[(1, 137431640), (2, 68715820), (4, 34357910), (5, 27486328), (8, 17178955), (10, 13743164), (20, 6871582), (40, 3435791), (149, 922360), (298, 461180), (596, 230590), (745, 184472), (1192, 115295), (1490, 92236), (2980, 46118), (5960, 23059)]