80426740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{467}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 172972800

約数和(自身を除く): 92546060

約数列:

[1, 2, 4, 5, 10, 20, 79, 109, 158, 218, 316, 395, 436, 467, 545, 790, 934, 1090, 1580, 1868, 2180, 2335, 4670, 8611, 9340, 17222, 34444, 36893, 43055, 50903, 73786, 86110, 101806, 147572, 172220, 184465, 203612, 254515, 368930, 509030, 737860, 1018060, 4021337, 8042674, 16085348, 20106685, 40213370, 80426740]

約数ペア:

[(1, 80426740), (2, 40213370), (4, 20106685), (5, 16085348), (10, 8042674), (20, 4021337), (79, 1018060), (109, 737860), (158, 509030), (218, 368930), (316, 254515), (395, 203612), (436, 184465), (467, 172220), (545, 147572), (790, 101806), (934, 86110), (1090, 73786), (1580, 50903), (1868, 43055), (2180, 36893), (2335, 34444), (4670, 17222), (8611, 9340)]