64840844

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{20809}}^1$

素因数の和:20873

約数の個数: 24

約数和(自身を含む): 122362800

約数和(自身を除く): 57521956

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 20809, 41618, 83236, 395371, 790742, 853169, 1581484, 1706338, 3412676, 16210211, 32420422, 64840844]

約数ペア:

[(1, 64840844), (2, 32420422), (4, 16210211), (19, 3412676), (38, 1706338), (41, 1581484), (76, 853169), (82, 790742), (164, 395371), (779, 83236), (1558, 41618), (3116, 20809)]