221255335

素因数分解:

$5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 318880800

約数和(自身を除く): 97625465

約数列:

[1, 5, 7, 35, 49, 73, 89, 139, 245, 365, 445, 511, 623, 695, 973, 2555, 3115, 3577, 4361, 4865, 6497, 6811, 10147, 12371, 17885, 21805, 32485, 34055, 45479, 50735, 61855, 71029, 86597, 227395, 318353, 355145, 432985, 497203, 606179, 903083, 1591765, 2486015, 3030895, 4515415, 6321581, 31607905, 44251067, 221255335]

約数ペア:

[(1, 221255335), (5, 44251067), (7, 31607905), (35, 6321581), (49, 4515415), (73, 3030895), (89, 2486015), (139, 1591765), (245, 903083), (365, 606179), (445, 497203), (511, 432985), (623, 355145), (695, 318353), (973, 227395), (2555, 86597), (3115, 71029), (3577, 61855), (4361, 50735), (4865, 45479), (6497, 34055), (6811, 32485), (10147, 21805), (12371, 17885)]