65977640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20879}}^1$

素因数の和:20969

約数の個数: 32

約数和(自身を含む): 150336000

約数和(自身を除く): 84358360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 20879, 41758, 83516, 104395, 167032, 208790, 417580, 835160, 1649441, 3298882, 6597764, 8247205, 13195528, 16494410, 32988820, 65977640]

約数ペア:

[(1, 65977640), (2, 32988820), (4, 16494410), (5, 13195528), (8, 8247205), (10, 6597764), (20, 3298882), (40, 1649441), (79, 835160), (158, 417580), (316, 208790), (395, 167032), (632, 104395), (790, 83516), (1580, 41758), (3160, 20879)]