27972280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{99901}}^1$

素因数の和:99919

約数の個数: 32

約数和(自身を含む): 71929440

約数和(自身を除く): 43957160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 99901, 199802, 399604, 499505, 699307, 799208, 999010, 1398614, 1998020, 2797228, 3496535, 3996040, 5594456, 6993070, 13986140, 27972280]

約数ペア:

[(1, 27972280), (2, 13986140), (4, 6993070), (5, 5594456), (7, 3996040), (8, 3496535), (10, 2797228), (14, 1998020), (20, 1398614), (28, 999010), (35, 799208), (40, 699307), (56, 499505), (70, 399604), (140, 199802), (280, 99901)]