204464720

素因数分解:

$2^4\times 5^1\times {\mathrm{2555809}}^1$

素因数の和:2555822

約数の個数: 20

約数和(自身を含む): 475380660

約数和(自身を除く): 270915940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2555809, 5111618, 10223236, 12779045, 20446472, 25558090, 40892944, 51116180, 102232360, 204464720]

約数ペア:

[(1, 204464720), (2, 102232360), (4, 51116180), (5, 40892944), (8, 25558090), (10, 20446472), (16, 12779045), (20, 10223236), (40, 5111618), (80, 2555809)]