16251580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{19819}}^1$

素因数の和:19869

約数の個数: 24

約数和(自身を含む): 34962480

約数和(自身を除く): 18710900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 19819, 39638, 79276, 99095, 198190, 396380, 812579, 1625158, 3250316, 4062895, 8125790, 16251580]

約数ペア:

[(1, 16251580), (2, 8125790), (4, 4062895), (5, 3250316), (10, 1625158), (20, 812579), (41, 396380), (82, 198190), (164, 99095), (205, 79276), (410, 39638), (820, 19819)]