1978142570

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1958557}}^1$

素因数の和:1958665

約数の個数: 16

約数和(自身を含む): 3595912488

約数和(自身を除く): 1617769918

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 1958557, 3917114, 9792785, 19585570, 197814257, 395628514, 989071285, 1978142570]

約数ペア:

[(1, 1978142570), (2, 989071285), (5, 395628514), (10, 197814257), (101, 19585570), (202, 9792785), (505, 3917114), (1010, 1958557)]