56250045

素因数分解:

$3^4\times 5^1\times {\mathrm{138889}}^1$

素因数の和:138906

約数の個数: 20

約数和(自身を含む): 100834140

約数和(自身を除く): 44584095

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 138889, 416667, 694445, 1250001, 2083335, 3750003, 6250005, 11250009, 18750015, 56250045]

約数ペア:

[(1, 56250045), (3, 18750015), (5, 11250009), (9, 6250005), (15, 3750003), (27, 2083335), (45, 1250001), (81, 694445), (135, 416667), (405, 138889)]