20347840

素因数分解:

$2^6\times 5^1\times {\mathrm{63587}}^1$

素因数の和:63604

約数の個数: 28

約数和(自身を含む): 48454056

約数和(自身を除く): 28106216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63587, 127174, 254348, 317935, 508696, 635870, 1017392, 1271740, 2034784, 2543480, 4069568, 5086960, 10173920, 20347840]

約数ペア:

[(1, 20347840), (2, 10173920), (4, 5086960), (5, 4069568), (8, 2543480), (10, 2034784), (16, 1271740), (20, 1017392), (32, 635870), (40, 508696), (64, 317935), (80, 254348), (160, 127174), (320, 63587)]