257607140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1840051}}^1$

素因数の和:1840067

約数の個数: 24

約数和(自身を含む): 618257472

約数和(自身を除く): 360650332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1840051, 3680102, 7360204, 9200255, 12880357, 18400510, 25760714, 36801020, 51521428, 64401785, 128803570, 257607140]

約数ペア:

[(1, 257607140), (2, 128803570), (4, 64401785), (5, 51521428), (7, 36801020), (10, 25760714), (14, 18400510), (20, 12880357), (28, 9200255), (35, 7360204), (70, 3680102), (140, 1840051)]