20120260

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13781}}^1$

素因数の和:13863

約数の個数: 24

約数和(自身を含む): 42834456

約数和(自身を除く): 22714196

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 13781, 27562, 55124, 68905, 137810, 275620, 1006013, 2012026, 4024052, 5030065, 10060130, 20120260]

約数ペア:

[(1, 20120260), (2, 10060130), (4, 5030065), (5, 4024052), (10, 2012026), (20, 1006013), (73, 275620), (146, 137810), (292, 68905), (365, 55124), (730, 27562), (1460, 13781)]