868815

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 1544400

約数和(自身を除く): 675585

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 449, 645, 1347, 1935, 2245, 4041, 6735, 19307, 20205, 57921, 96535, 173763, 289605, 868815]

約数ペア:

[(1, 868815), (3, 289605), (5, 173763), (9, 96535), (15, 57921), (43, 20205), (45, 19307), (129, 6735), (215, 4041), (387, 2245), (449, 1935), (645, 1347)]