20611600

素因数分解:

$2^4\times 5^2\times {\mathrm{227}}^2$

素因数の和:472

約数の個数: 45

約数和(自身を含む): 49738477

約数和(自身を除く): 29126877

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 227, 400, 454, 908, 1135, 1816, 2270, 3632, 4540, 5675, 9080, 11350, 18160, 22700, 45400, 51529, 90800, 103058, 206116, 257645, 412232, 515290, 824464, 1030580, 1288225, 2061160, 2576450, 4122320, 5152900, 10305800, 20611600]

約数ペア:

[(1, 20611600), (2, 10305800), (4, 5152900), (5, 4122320), (8, 2576450), (10, 2061160), (16, 1288225), (20, 1030580), (25, 824464), (40, 515290), (50, 412232), (80, 257645), (100, 206116), (200, 103058), (227, 90800), (400, 51529), (454, 45400), (908, 22700), (1135, 18160), (1816, 11350), (2270, 9080), (3632, 5675)]