280121418

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{111959}}^1$

素因数の和:112106

約数の個数: 24

約数和(自身を含む): 611301600

約数和(自身を除く): 331180182

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 111959, 223918, 335877, 671754, 1007631, 2015262, 15562301, 31124602, 46686903, 93373806, 140060709, 280121418]

約数ペア:

[(1, 280121418), (2, 140060709), (3, 93373806), (6, 46686903), (9, 31124602), (18, 15562301), (139, 2015262), (278, 1007631), (417, 671754), (834, 335877), (1251, 223918), (2502, 111959)]