1805372020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{9521}}^1$

素因数の和:10048

約数の個数: 48

約数和(自身を含む): 3999240000

約数和(自身を除く): 2193867980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 499, 998, 1996, 2495, 4990, 9481, 9521, 9980, 18962, 19042, 37924, 38084, 47405, 47605, 94810, 95210, 180899, 189620, 190420, 361798, 723596, 904495, 1808990, 3617980, 4750979, 9501958, 19003916, 23754895, 47509790, 90268601, 95019580, 180537202, 361074404, 451343005, 902686010, 1805372020]

約数ペア:

[(1, 1805372020), (2, 902686010), (4, 451343005), (5, 361074404), (10, 180537202), (19, 95019580), (20, 90268601), (38, 47509790), (76, 23754895), (95, 19003916), (190, 9501958), (380, 4750979), (499, 3617980), (998, 1808990), (1996, 904495), (2495, 723596), (4990, 361798), (9481, 190420), (9521, 189620), (9980, 180899), (18962, 95210), (19042, 94810), (37924, 47605), (38084, 47405)]