638650985

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{103}}^1\times {\mathrm{613}}^1$

素因数の和:762

約数の個数: 48

約数和(自身を含む): 940982016

約数和(自身を除く): 302331031

約数列:

[1, 5, 7, 17, 35, 85, 103, 119, 289, 515, 595, 613, 721, 1445, 1751, 2023, 3065, 3605, 4291, 8755, 10115, 10421, 12257, 21455, 29767, 52105, 61285, 63139, 72947, 148835, 177157, 208369, 315695, 364735, 441973, 885785, 1041845, 1073363, 1240099, 2209865, 5366815, 6200495, 7513541, 18247171, 37567705, 91235855, 127730197, 638650985]

約数ペア:

[(1, 638650985), (5, 127730197), (7, 91235855), (17, 37567705), (35, 18247171), (85, 7513541), (103, 6200495), (119, 5366815), (289, 2209865), (515, 1240099), (595, 1073363), (613, 1041845), (721, 885785), (1445, 441973), (1751, 364735), (2023, 315695), (3065, 208369), (3605, 177157), (4291, 148835), (8755, 72947), (10115, 63139), (10421, 61285), (12257, 52105), (21455, 29767)]