858708945

素因数分解:

$3^4\times 5^1\times {\mathrm{2120269}}^1$

素因数の和:2120286

約数の個数: 20

約数和(自身を含む): 1539316020

約数和(自身を除く): 680607075

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2120269, 6360807, 10601345, 19082421, 31804035, 57247263, 95412105, 171741789, 286236315, 858708945]

約数ペア:

[(1, 858708945), (3, 286236315), (5, 171741789), (9, 95412105), (15, 57247263), (27, 31804035), (45, 19082421), (81, 10601345), (135, 6360807), (405, 2120269)]