18325978075

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1\times {\mathrm{433}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 23570116416

約数和(自身を除く): 5244138341

約数列:

[1, 5, 25, 41, 157, 205, 263, 433, 785, 1025, 1315, 2165, 3925, 6437, 6575, 10783, 10825, 17753, 32185, 41291, 53915, 67981, 88765, 113879, 160925, 206455, 269575, 339905, 443825, 569395, 1032275, 1692931, 1699525, 2787221, 2846975, 4669039, 8464655, 13936105, 17879003, 23345195, 42323275, 69680525, 89395015, 116725975, 446975075, 733039123, 3665195615, 18325978075]

約数ペア:

[(1, 18325978075), (5, 3665195615), (25, 733039123), (41, 446975075), (157, 116725975), (205, 89395015), (263, 69680525), (433, 42323275), (785, 23345195), (1025, 17879003), (1315, 13936105), (2165, 8464655), (3925, 4669039), (6437, 2846975), (6575, 2787221), (10783, 1699525), (10825, 1692931), (17753, 1032275), (32185, 569395), (41291, 443825), (53915, 339905), (67981, 269575), (88765, 206455), (113879, 160925)]