81317995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{64283}}^1$

素因数の和:64322

約数の個数: 16

約数和(自身を含む): 111082752

約数和(自身を除く): 29764757

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 64283, 321415, 707113, 1478509, 3535565, 7392545, 16263599, 81317995]

約数ペア:

[(1, 81317995), (5, 16263599), (11, 7392545), (23, 3535565), (55, 1478509), (115, 707113), (253, 321415), (1265, 64283)]