30991210

素因数分解:

$2^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{4421}}^1$

素因数の和:5129

約数の個数: 16

約数和(自身を含む): 55876392

約数和(自身を除く): 24885182

約数列:

[1, 2, 5, 10, 701, 1402, 3505, 4421, 7010, 8842, 22105, 44210, 3099121, 6198242, 15495605, 30991210]

約数ペア:

[(1, 30991210), (2, 15495605), (5, 6198242), (10, 3099121), (701, 44210), (1402, 22105), (3505, 8842), (4421, 7010)]