388430140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2774501}}^1$

素因数の和:2774517

約数の個数: 24

約数和(自身を含む): 932232672

約数和(自身を除く): 543802532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2774501, 5549002, 11098004, 13872505, 19421507, 27745010, 38843014, 55490020, 77686028, 97107535, 194215070, 388430140]

約数ペア:

[(1, 388430140), (2, 194215070), (4, 97107535), (5, 77686028), (7, 55490020), (10, 38843014), (14, 27745010), (20, 19421507), (28, 13872505), (35, 11098004), (70, 5549002), (140, 2774501)]