528048020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{643961}}^1$

素因数の和:644011

約数の個数: 24

約数和(自身を含む): 1135948968

約数和(自身を除く): 607900948

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 643961, 1287922, 2575844, 3219805, 6439610, 12879220, 26402401, 52804802, 105609604, 132012005, 264024010, 528048020]

約数ペア:

[(1, 528048020), (2, 264024010), (4, 132012005), (5, 105609604), (10, 52804802), (20, 26402401), (41, 12879220), (82, 6439610), (164, 3219805), (205, 2575844), (410, 1287922), (820, 643961)]