2920815

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1381}}^1$

素因数の和:1439

約数の個数: 24

約数和(自身を含む): 5174208

約数和(自身を除く): 2253393

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 1381, 2115, 4143, 6905, 12429, 20715, 62145, 64907, 194721, 324535, 584163, 973605, 2920815]

約数ペア:

[(1, 2920815), (3, 973605), (5, 584163), (9, 324535), (15, 194721), (45, 64907), (47, 62145), (141, 20715), (235, 12429), (423, 6905), (705, 4143), (1381, 2115)]