200820860

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{19727}}^1$

素因数の和:20245

約数の個数: 24

約数和(自身を含む): 422573760

約数和(自身を除く): 221752900

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 19727, 39454, 78908, 98635, 197270, 394540, 10041043, 20082086, 40164172, 50205215, 100410430, 200820860]

約数ペア:

[(1, 200820860), (2, 100410430), (4, 50205215), (5, 40164172), (10, 20082086), (20, 10041043), (509, 394540), (1018, 197270), (2036, 98635), (2545, 78908), (5090, 39454), (10180, 19727)]