138729220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{990923}}^1$

素因数の和:990939

約数の個数: 24

約数和(自身を含む): 332950464

約数和(自身を除く): 194221244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 990923, 1981846, 3963692, 4954615, 6936461, 9909230, 13872922, 19818460, 27745844, 34682305, 69364610, 138729220]

約数ペア:

[(1, 138729220), (2, 69364610), (4, 34682305), (5, 27745844), (7, 19818460), (10, 13872922), (14, 9909230), (20, 6936461), (28, 4954615), (35, 3963692), (70, 1981846), (140, 990923)]