78515984

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{119689}}^1$

素因数の和:119738

約数の個数: 20

約数和(自身を含む): 155836380

約数和(自身を除く): 77320396

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 119689, 239378, 478756, 957512, 1915024, 4907249, 9814498, 19628996, 39257992, 78515984]

約数ペア:

[(1, 78515984), (2, 39257992), (4, 19628996), (8, 9814498), (16, 4907249), (41, 1915024), (82, 957512), (164, 478756), (328, 239378), (656, 119689)]