18887639240

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2372819}}^1$

素因数の和:2373029

約数の個数: 32

約数和(自身を含む): 42710760000

約数和(自身を除く): 23823120760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 2372819, 4745638, 9491276, 11864095, 18982552, 23728190, 47456380, 94912760, 472190981, 944381962, 1888763924, 2360954905, 3777527848, 4721909810, 9443819620, 18887639240]

約数ペア:

[(1, 18887639240), (2, 9443819620), (4, 4721909810), (5, 3777527848), (8, 2360954905), (10, 1888763924), (20, 944381962), (40, 472190981), (199, 94912760), (398, 47456380), (796, 23728190), (995, 18982552), (1592, 11864095), (1990, 9491276), (3980, 4745638), (7960, 2372819)]