28855845

素因数分解:

$3^4\times 5^1\times {\mathrm{71249}}^1$

素因数の和:71266

約数の個数: 20

約数和(自身を含む): 51727500

約数和(自身を除く): 22871655

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71249, 213747, 356245, 641241, 1068735, 1923723, 3206205, 5771169, 9618615, 28855845]

約数ペア:

[(1, 28855845), (3, 9618615), (5, 5771169), (9, 3206205), (15, 1923723), (27, 1068735), (45, 641241), (81, 356245), (135, 213747), (405, 71249)]