28509165

素因数分解:

$3^4\times 5^1\times {\mathrm{70393}}^1$

素因数の和:70410

約数の個数: 20

約数和(自身を含む): 51106044

約数和(自身を除く): 22596879

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70393, 211179, 351965, 633537, 1055895, 1900611, 3167685, 5701833, 9503055, 28509165]

約数ペア:

[(1, 28509165), (3, 9503055), (5, 5701833), (9, 3167685), (15, 1900611), (27, 1055895), (45, 633537), (81, 351965), (135, 211179), (405, 70393)]