39989978

素因数分解:

$2^1\times 7^2\times {\mathrm{389}}^1\times {\mathrm{1049}}^1$

素因数の和:1454

約数の個数: 24

約数和(自身を含む): 70024500

約数和(自身を除く): 30034522

約数列:

[1, 2, 7, 14, 49, 98, 389, 778, 1049, 2098, 2723, 5446, 7343, 14686, 19061, 38122, 51401, 102802, 408061, 816122, 2856427, 5712854, 19994989, 39989978]

約数ペア:

[(1, 39989978), (2, 19994989), (7, 5712854), (14, 2856427), (49, 816122), (98, 408061), (389, 102802), (778, 51401), (1049, 38122), (2098, 19061), (2723, 14686), (5446, 7343)]