20125782

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 45927648

約数和(自身を除く): 25801866

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 173, 207, 281, 346, 414, 519, 562, 843, 1038, 1557, 1686, 2529, 3114, 3979, 5058, 6463, 7958, 11937, 12926, 19389, 23874, 35811, 38778, 48613, 58167, 71622, 97226, 116334, 145839, 291678, 437517, 875034, 1118099, 2236198, 3354297, 6708594, 10062891, 20125782]

約数ペア:

[(1, 20125782), (2, 10062891), (3, 6708594), (6, 3354297), (9, 2236198), (18, 1118099), (23, 875034), (46, 437517), (69, 291678), (138, 145839), (173, 116334), (207, 97226), (281, 71622), (346, 58167), (414, 48613), (519, 38778), (562, 35811), (843, 23874), (1038, 19389), (1557, 12926), (1686, 11937), (2529, 7958), (3114, 6463), (3979, 5058)]