20199087790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{719597}}^1$

素因数の和:720012

約数の個数: 32

約数和(自身を含む): 41656089024

約数和(自身を除く): 21457001234

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 401, 802, 2005, 2807, 4010, 5614, 14035, 28070, 719597, 1439194, 3597985, 5037179, 7195970, 10074358, 25185895, 50371790, 288558397, 577116794, 1442791985, 2019908779, 2885583970, 4039817558, 10099543895, 20199087790]

約数ペア:

[(1, 20199087790), (2, 10099543895), (5, 4039817558), (7, 2885583970), (10, 2019908779), (14, 1442791985), (35, 577116794), (70, 288558397), (401, 50371790), (802, 25185895), (2005, 10074358), (2807, 7195970), (4010, 5037179), (5614, 3597985), (14035, 1439194), (28070, 719597)]