205782020

素因数分解:

$2^2\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{7933}}^1$

素因数の和:9239

約数の個数: 24

約数和(自身を含む): 432529944

約数和(自身を除く): 226747924

約数列:

[1, 2, 4, 5, 10, 20, 1297, 2594, 5188, 6485, 7933, 12970, 15866, 25940, 31732, 39665, 79330, 158660, 10289101, 20578202, 41156404, 51445505, 102891010, 205782020]

約数ペア:

[(1, 205782020), (2, 102891010), (4, 51445505), (5, 41156404), (10, 20578202), (20, 10289101), (1297, 158660), (2594, 79330), (5188, 39665), (6485, 31732), (7933, 25940), (12970, 15866)]