81500978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{19231}}^1$

素因数の和:19409

約数の個数: 16

約数和(自身を含む): 132470016

約数和(自身を除く): 50969038

約数列:

[1, 2, 13, 26, 163, 326, 2119, 4238, 19231, 38462, 250003, 500006, 3134653, 6269306, 40750489, 81500978]

約数ペア:

[(1, 81500978), (2, 40750489), (13, 6269306), (26, 3134653), (163, 500006), (326, 250003), (2119, 38462), (4238, 19231)]