20046455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{53}}^1$

素因数の和:128

約数の個数: 48

約数和(自身を含む): 30100896

約数和(自身を除く): 10054441

約数列:

[1, 5, 11, 13, 23, 53, 55, 65, 115, 143, 253, 265, 299, 529, 583, 689, 715, 1219, 1265, 1495, 2645, 2915, 3289, 3445, 5819, 6095, 6877, 7579, 13409, 15847, 16445, 28037, 29095, 34385, 37895, 67045, 75647, 79235, 140185, 174317, 308407, 364481, 378235, 871585, 1542035, 1822405, 4009291, 20046455]

約数ペア:

[(1, 20046455), (5, 4009291), (11, 1822405), (13, 1542035), (23, 871585), (53, 378235), (55, 364481), (65, 308407), (115, 174317), (143, 140185), (253, 79235), (265, 75647), (299, 67045), (529, 37895), (583, 34385), (689, 29095), (715, 28037), (1219, 16445), (1265, 15847), (1495, 13409), (2645, 7579), (2915, 6877), (3289, 6095), (3445, 5819)]