2820195

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{1279}}^1$

素因数の和:1304

約数の個数: 36

約数和(自身を含む): 5690880

約数和(自身を除く): 2870685

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 1279, 2205, 3837, 6395, 8953, 11511, 19185, 26859, 44765, 57555, 62671, 80577, 134295, 188013, 313355, 402885, 564039, 940065, 2820195]

約数ペア:

[(1, 2820195), (3, 940065), (5, 564039), (7, 402885), (9, 313355), (15, 188013), (21, 134295), (35, 80577), (45, 62671), (49, 57555), (63, 44765), (105, 26859), (147, 19185), (245, 11511), (315, 8953), (441, 6395), (735, 3837), (1279, 2205)]