79420520

素因数分解:

$2^3\times 5^1\times {\mathrm{1985513}}^1$

素因数の和:1985524

約数の個数: 16

約数和(自身を含む): 178696260

約数和(自身を除く): 99275740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1985513, 3971026, 7942052, 9927565, 15884104, 19855130, 39710260, 79420520]

約数ペア:

[(1, 79420520), (2, 39710260), (4, 19855130), (5, 15884104), (8, 9927565), (10, 7942052), (20, 3971026), (40, 1985513)]