81180902

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{90001}}^1$

素因数の和:90055

約数の個数: 16

約数和(自身を含む): 136083024

約数和(自身を除く): 54902122

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 90001, 180002, 990011, 1980022, 3690041, 7380082, 40590451, 81180902]

約数ペア:

[(1, 81180902), (2, 40590451), (11, 7380082), (22, 3690041), (41, 1980022), (82, 990011), (451, 180002), (902, 90001)]