220193960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{786407}}^1$

素因数の和:786425

約数の個数: 32

約数和(自身を含む): 566213760

約数和(自身を除く): 346019800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 786407, 1572814, 3145628, 3932035, 5504849, 6291256, 7864070, 11009698, 15728140, 22019396, 27524245, 31456280, 44038792, 55048490, 110096980, 220193960]

約数ペア:

[(1, 220193960), (2, 110096980), (4, 55048490), (5, 44038792), (7, 31456280), (8, 27524245), (10, 22019396), (14, 15728140), (20, 11009698), (28, 7864070), (35, 6291256), (40, 5504849), (56, 3932035), (70, 3145628), (140, 1572814), (280, 786407)]