51317980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5471}}^1$

素因数の和:5554

約数の個数: 48

約数和(自身を含む): 125024256

約数和(自身を除く): 73706276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2345, 4690, 5471, 9380, 10942, 21884, 27355, 38297, 54710, 76594, 109420, 153188, 191485, 366557, 382970, 733114, 765940, 1466228, 1832785, 2565899, 3665570, 5131798, 7331140, 10263596, 12829495, 25658990, 51317980]

約数ペア:

[(1, 51317980), (2, 25658990), (4, 12829495), (5, 10263596), (7, 7331140), (10, 5131798), (14, 3665570), (20, 2565899), (28, 1832785), (35, 1466228), (67, 765940), (70, 733114), (134, 382970), (140, 366557), (268, 191485), (335, 153188), (469, 109420), (670, 76594), (938, 54710), (1340, 38297), (1876, 27355), (2345, 21884), (4690, 10942), (5471, 9380)]