74720420

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{20641}}^1$

素因数の和:20831

約数の個数: 24

約数和(自身を含む): 157787448

約数和(自身を除く): 83067028

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 20641, 41282, 82564, 103205, 206410, 412820, 3736021, 7472042, 14944084, 18680105, 37360210, 74720420]

約数ペア:

[(1, 74720420), (2, 37360210), (4, 18680105), (5, 14944084), (10, 7472042), (20, 3736021), (181, 412820), (362, 206410), (724, 103205), (905, 82564), (1810, 41282), (3620, 20641)]