19861120

素因数分解:

$2^7\times 5^1\times {\mathrm{31033}}^1$

素因数の和:31052

約数の個数: 32

約数和(自身を含む): 47482020

約数和(自身を除く): 27620900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31033, 62066, 124132, 155165, 248264, 310330, 496528, 620660, 993056, 1241320, 1986112, 2482640, 3972224, 4965280, 9930560, 19861120]

約数ペア:

[(1, 19861120), (2, 9930560), (4, 4965280), (5, 3972224), (8, 2482640), (10, 1986112), (16, 1241320), (20, 993056), (32, 620660), (40, 496528), (64, 310330), (80, 248264), (128, 155165), (160, 124132), (320, 62066), (640, 31033)]