19535920

素因数分解:

$2^4\times 5^1\times {\mathrm{244199}}^1$

素因数の和:244212

約数の個数: 20

約数和(自身を含む): 45421200

約数和(自身を除く): 25885280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244199, 488398, 976796, 1220995, 1953592, 2441990, 3907184, 4883980, 9767960, 19535920]

約数ペア:

[(1, 19535920), (2, 9767960), (4, 4883980), (5, 3907184), (8, 2441990), (10, 1953592), (16, 1220995), (20, 976796), (40, 488398), (80, 244199)]