30771640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2131}}^1$

素因数の和:2180

約数の個数: 48

約数和(自身を含む): 73106280

約数和(自身を除く): 42334640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2131, 2888, 3610, 4262, 7220, 8524, 10655, 14440, 17048, 21310, 40489, 42620, 80978, 85240, 161956, 202445, 323912, 404890, 769291, 809780, 1538582, 1619560, 3077164, 3846455, 6154328, 7692910, 15385820, 30771640]

約数ペア:

[(1, 30771640), (2, 15385820), (4, 7692910), (5, 6154328), (8, 3846455), (10, 3077164), (19, 1619560), (20, 1538582), (38, 809780), (40, 769291), (76, 404890), (95, 323912), (152, 202445), (190, 161956), (361, 85240), (380, 80978), (722, 42620), (760, 40489), (1444, 21310), (1805, 17048), (2131, 14440), (2888, 10655), (3610, 8524), (4262, 7220)]