20644865288

素因数分解:

$2^3\times {\mathrm{9319}}^1\times {\mathrm{276919}}^1$

素因数の和:286244

約数の個数: 16

約数和(自身を含む): 38713416000

約数和(自身を除く): 18068550712

約数列:

[1, 2, 4, 8, 9319, 18638, 37276, 74552, 276919, 553838, 1107676, 2215352, 2580608161, 5161216322, 10322432644, 20644865288]

約数ペア:

[(1, 20644865288), (2, 10322432644), (4, 5161216322), (8, 2580608161), (9319, 2215352), (18638, 1107676), (37276, 553838), (74552, 276919)]