82142420

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{8069}}^1$

素因数の和:8587

約数の個数: 24

約数和(自身を含む): 172859400

約数和(自身を除く): 90716980

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 8069, 10180, 16138, 32276, 40345, 80690, 161380, 4107121, 8214242, 16428484, 20535605, 41071210, 82142420]

約数ペア:

[(1, 82142420), (2, 41071210), (4, 20535605), (5, 16428484), (10, 8214242), (20, 4107121), (509, 161380), (1018, 80690), (2036, 40345), (2545, 32276), (5090, 16138), (8069, 10180)]