20005990

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{13249}}^1$

素因数の和:13407

約数の個数: 16

約数和(自身を含む): 36252000

約数和(自身を除く): 16246010

約数列:

[1, 2, 5, 10, 151, 302, 755, 1510, 13249, 26498, 66245, 132490, 2000599, 4001198, 10002995, 20005990]

約数ペア:

[(1, 20005990), (2, 10002995), (5, 4001198), (10, 2000599), (151, 132490), (302, 66245), (755, 26498), (1510, 13249)]