561295

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 24

約数和(自身を含む): 820800

約数和(自身を除く): 259505

約数列:

[1, 5, 7, 29, 35, 49, 79, 145, 203, 245, 395, 553, 1015, 1421, 2291, 2765, 3871, 7105, 11455, 16037, 19355, 80185, 112259, 561295]

約数ペア:

[(1, 561295), (5, 112259), (7, 80185), (29, 19355), (35, 16037), (49, 11455), (79, 7105), (145, 3871), (203, 2765), (245, 2291), (395, 1421), (553, 1015)]