20742912005

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{8609}}^1\times {\mathrm{4421}}^1$

素因数の和:13144

約数の個数: 16

約数和(自身を含む): 25128457200

約数和(自身を除く): 4385545195

約数列:

[1, 5, 109, 545, 4421, 8609, 22105, 43045, 481889, 938381, 2409445, 4691905, 38060389, 190301945, 4148582401, 20742912005]

約数ペア:

[(1, 20742912005), (5, 4148582401), (109, 190301945), (545, 38060389), (4421, 4691905), (8609, 2409445), (22105, 938381), (43045, 481889)]