81098020

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{17863}}^1$

素因数の和:18099

約数の個数: 24

約数和(自身を含む): 171065664

約数和(自身を除く): 89967644

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4540, 17863, 35726, 71452, 89315, 178630, 357260, 4054901, 8109802, 16219604, 20274505, 40549010, 81098020]

約数ペア:

[(1, 81098020), (2, 40549010), (4, 20274505), (5, 16219604), (10, 8109802), (20, 4054901), (227, 357260), (454, 178630), (908, 89315), (1135, 71452), (2270, 35726), (4540, 17863)]