16860880

素因数分解:

$2^4\times 5^1\times {\mathrm{210761}}^1$

素因数の和:210774

約数の個数: 20

約数和(自身を含む): 39201732

約数和(自身を除く): 22340852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210761, 421522, 843044, 1053805, 1686088, 2107610, 3372176, 4215220, 8430440, 16860880]

約数ペア:

[(1, 16860880), (2, 8430440), (4, 4215220), (5, 3372176), (8, 2107610), (10, 1686088), (16, 1053805), (20, 843044), (40, 421522), (80, 210761)]