81546760

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{3727}}^1$

素因数の和:4285

約数の個数: 32

約数和(自身を含む): 183864960

約数和(自身を除く): 102318200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 1094, 2188, 2735, 3727, 4376, 5470, 7454, 10940, 14908, 18635, 21880, 29816, 37270, 74540, 149080, 2038669, 4077338, 8154676, 10193345, 16309352, 20386690, 40773380, 81546760]

約数ペア:

[(1, 81546760), (2, 40773380), (4, 20386690), (5, 16309352), (8, 10193345), (10, 8154676), (20, 4077338), (40, 2038669), (547, 149080), (1094, 74540), (2188, 37270), (2735, 29816), (3727, 21880), (4376, 18635), (5470, 14908), (7454, 10940)]