19996010

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4889}}^1$

素因数の和:5305

約数の個数: 16

約数和(自身を含む): 36088200

約数和(自身を除く): 16092190

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 4889, 9778, 24445, 48890, 1999601, 3999202, 9998005, 19996010]

約数ペア:

[(1, 19996010), (2, 9998005), (5, 3999202), (10, 1999601), (409, 48890), (818, 24445), (2045, 9778), (4090, 4889)]