26681780

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2621}}^1$

素因数の和:3139

約数の個数: 24

約数和(自身を含む): 56163240

約数和(自身を除く): 29481460

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 2621, 5090, 5242, 10180, 10484, 13105, 26210, 52420, 1334089, 2668178, 5336356, 6670445, 13340890, 26681780]

約数ペア:

[(1, 26681780), (2, 13340890), (4, 6670445), (5, 5336356), (10, 2668178), (20, 1334089), (509, 52420), (1018, 26210), (2036, 13105), (2545, 10484), (2621, 10180), (5090, 5242)]