204540520

素因数分解:

$2^3\times 5^1\times {\mathrm{5113513}}^1$

素因数の和:5113524

約数の個数: 16

約数和(自身を含む): 460216260

約数和(自身を除く): 255675740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5113513, 10227026, 20454052, 25567565, 40908104, 51135130, 102270260, 204540520]

約数ペア:

[(1, 204540520), (2, 102270260), (4, 51135130), (5, 40908104), (8, 25567565), (10, 20454052), (20, 10227026), (40, 5113513)]