18810680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67181}}^1$

素因数の和:67199

約数の個数: 32

約数和(自身を含む): 48371040

約数和(自身を除く): 29560360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67181, 134362, 268724, 335905, 470267, 537448, 671810, 940534, 1343620, 1881068, 2351335, 2687240, 3762136, 4702670, 9405340, 18810680]

約数ペア:

[(1, 18810680), (2, 9405340), (4, 4702670), (5, 3762136), (7, 2687240), (8, 2351335), (10, 1881068), (14, 1343620), (20, 940534), (28, 671810), (35, 537448), (40, 470267), (56, 335905), (70, 268724), (140, 134362), (280, 67181)]