81820235

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{8089}}^1$

素因数の和:8135

約数の個数: 24

約数和(自身を含む): 119214240

約数和(自身を除く): 37394005

約数列:

[1, 5, 7, 17, 35, 85, 119, 289, 595, 1445, 2023, 8089, 10115, 40445, 56623, 137513, 283115, 687565, 962591, 2337721, 4812955, 11688605, 16364047, 81820235]

約数ペア:

[(1, 81820235), (5, 16364047), (7, 11688605), (17, 4812955), (35, 2337721), (85, 962591), (119, 687565), (289, 283115), (595, 137513), (1445, 56623), (2023, 40445), (8089, 10115)]