19980710

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{68899}}^1$

素因数の和:68935

約数の個数: 16

約数和(自身を含む): 37206000

約数和(自身を除く): 17225290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 68899, 137798, 344495, 688990, 1998071, 3996142, 9990355, 19980710]

約数ペア:

[(1, 19980710), (2, 9990355), (5, 3996142), (10, 1998071), (29, 688990), (58, 344495), (145, 137798), (290, 68899)]