81154316

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{227}}^1\times {\mathrm{643}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 143895360

約数和(自身を除く): 62741044

約数列:

[1, 2, 4, 139, 227, 278, 454, 556, 643, 908, 1286, 2572, 31553, 63106, 89377, 126212, 145961, 178754, 291922, 357508, 583844, 20288579, 40577158, 81154316]

約数ペア:

[(1, 81154316), (2, 40577158), (4, 20288579), (139, 583844), (227, 357508), (278, 291922), (454, 178754), (556, 145961), (643, 126212), (908, 89377), (1286, 63106), (2572, 31553)]