81368816

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{38821}}^1$

素因数の和:38960

約数の個数: 20

約数和(自身を含む): 158859624

約数和(自身を除く): 77490808

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 38821, 77642, 155284, 310568, 621136, 5085551, 10171102, 20342204, 40684408, 81368816]

約数ペア:

[(1, 81368816), (2, 40684408), (4, 20342204), (8, 10171102), (16, 5085551), (131, 621136), (262, 310568), (524, 155284), (1048, 77642), (2096, 38821)]