19967577980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142625557}}^1$

素因数の和:142625573

約数の個数: 24

約数和(自身を含む): 47922187488

約数和(自身を除く): 27954609508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142625557, 285251114, 570502228, 713127785, 998378899, 1426255570, 1996757798, 2852511140, 3993515596, 4991894495, 9983788990, 19967577980]

約数ペア:

[(1, 19967577980), (2, 9983788990), (4, 4991894495), (5, 3993515596), (7, 2852511140), (10, 1996757798), (14, 1426255570), (20, 998378899), (28, 713127785), (35, 570502228), (70, 285251114), (140, 142625557)]