8040880

素因数分解:

$2^4\times 5^1\times {\mathrm{100511}}^1$

素因数の和:100524

約数の個数: 20

約数和(自身を含む): 18695232

約数和(自身を除く): 10654352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 100511, 201022, 402044, 502555, 804088, 1005110, 1608176, 2010220, 4020440, 8040880]

約数ペア:

[(1, 8040880), (2, 4020440), (4, 2010220), (5, 1608176), (8, 1005110), (10, 804088), (16, 502555), (20, 402044), (40, 201022), (80, 100511)]