28447605

素因数分解:

$3^4\times 5^1\times {\mathrm{70241}}^1$

素因数の和:70258

約数の個数: 20

約数和(自身を含む): 50995692

約数和(自身を除く): 22548087

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70241, 210723, 351205, 632169, 1053615, 1896507, 3160845, 5689521, 9482535, 28447605]

約数ペア:

[(1, 28447605), (3, 9482535), (5, 5689521), (9, 3160845), (15, 1896507), (27, 1053615), (45, 632169), (81, 351205), (135, 210723), (405, 70241)]