1557225

素因数分解:

$3^4\times 5^2\times {\mathrm{769}}^1$

素因数の和:791

約数の個数: 30

約数和(自身を含む): 2888270

約数和(自身を除く): 1331045

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 769, 2025, 2307, 3845, 6921, 11535, 19225, 20763, 34605, 57675, 62289, 103815, 173025, 311445, 519075, 1557225]

約数ペア:

[(1, 1557225), (3, 519075), (5, 311445), (9, 173025), (15, 103815), (25, 62289), (27, 57675), (45, 34605), (75, 20763), (81, 19225), (135, 11535), (225, 6921), (405, 3845), (675, 2307), (769, 2025)]