209601980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{20509}}^1$

素因数の和:20598

約数の個数: 48

約数和(自身を含む): 509960640

約数和(自身を除く): 300358660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 10220, 20509, 41018, 82036, 102545, 143563, 205090, 287126, 410180, 574252, 717815, 1435630, 1497157, 2871260, 2994314, 5988628, 7485785, 10480099, 14971570, 20960198, 29943140, 41920396, 52400495, 104800990, 209601980]

約数ペア:

[(1, 209601980), (2, 104800990), (4, 52400495), (5, 41920396), (7, 29943140), (10, 20960198), (14, 14971570), (20, 10480099), (28, 7485785), (35, 5988628), (70, 2994314), (73, 2871260), (140, 1497157), (146, 1435630), (292, 717815), (365, 574252), (511, 410180), (730, 287126), (1022, 205090), (1460, 143563), (2044, 102545), (2555, 82036), (5110, 41018), (10220, 20509)]