2018187320

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{462887}}^1$

素因数の和:463007

約数の個数: 32

約数和(自身を含む): 4582591200

約数和(自身を除く): 2564403880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 462887, 925774, 1851548, 2314435, 3703096, 4628870, 9257740, 18515480, 50454683, 100909366, 201818732, 252273415, 403637464, 504546830, 1009093660, 2018187320]

約数ペア:

[(1, 2018187320), (2, 1009093660), (4, 504546830), (5, 403637464), (8, 252273415), (10, 201818732), (20, 100909366), (40, 50454683), (109, 18515480), (218, 9257740), (436, 4628870), (545, 3703096), (872, 2314435), (1090, 1851548), (2180, 925774), (4360, 462887)]