18534440

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{701}}^1$

素因数の和:1373

約数の個数: 32

約数和(自身を含む): 41825160

約数和(自身を除く): 23290720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 701, 1322, 1402, 2644, 2804, 3305, 3505, 5288, 5608, 6610, 7010, 13220, 14020, 26440, 28040, 463361, 926722, 1853444, 2316805, 3706888, 4633610, 9267220, 18534440]

約数ペア:

[(1, 18534440), (2, 9267220), (4, 4633610), (5, 3706888), (8, 2316805), (10, 1853444), (20, 926722), (40, 463361), (661, 28040), (701, 26440), (1322, 14020), (1402, 13220), (2644, 7010), (2804, 6610), (3305, 5608), (3505, 5288)]