18923920

素因数分解:

$2^4\times 5^1\times {\mathrm{236549}}^1$

素因数の和:236562

約数の個数: 20

約数和(自身を含む): 43998300

約数和(自身を除く): 25074380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236549, 473098, 946196, 1182745, 1892392, 2365490, 3784784, 4730980, 9461960, 18923920]

約数ペア:

[(1, 18923920), (2, 9461960), (4, 4730980), (5, 3784784), (8, 2365490), (10, 1892392), (16, 1182745), (20, 946196), (40, 473098), (80, 236549)]