20010880

素因数分解:

$2^7\times 5^1\times {\mathrm{31267}}^1$

素因数の和:31286

約数の個数: 32

約数和(自身を含む): 47840040

約数和(自身を除く): 27829160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31267, 62534, 125068, 156335, 250136, 312670, 500272, 625340, 1000544, 1250680, 2001088, 2501360, 4002176, 5002720, 10005440, 20010880]

約数ペア:

[(1, 20010880), (2, 10005440), (4, 5002720), (5, 4002176), (8, 2501360), (10, 2001088), (16, 1250680), (20, 1000544), (32, 625340), (40, 500272), (64, 312670), (80, 250136), (128, 156335), (160, 125068), (320, 62534), (640, 31267)]