208161640

素因数分解:

$2^3\times 5^1\times {\mathrm{5204041}}^1$

素因数の和:5204052

約数の個数: 16

約数和(自身を含む): 468363780

約数和(自身を除く): 260202140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5204041, 10408082, 20816164, 26020205, 41632328, 52040410, 104080820, 208161640]

約数ペア:

[(1, 208161640), (2, 104080820), (4, 52040410), (5, 41632328), (8, 26020205), (10, 20816164), (20, 10408082), (40, 5204041)]