18279888

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:500

約数の個数: 80

約数和(自身を含む): 52228800

約数和(自身を除く): 33948912

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 89, 132, 176, 178, 264, 267, 356, 389, 528, 534, 712, 778, 979, 1068, 1167, 1424, 1556, 1958, 2136, 2334, 2937, 3112, 3916, 4272, 4279, 4668, 5874, 6224, 7832, 8558, 9336, 11748, 12837, 15664, 17116, 18672, 23496, 25674, 34232, 34621, 46992, 51348, 68464, 69242, 102696, 103863, 138484, 205392, 207726, 276968, 380831, 415452, 553936, 761662, 830904, 1142493, 1523324, 1661808, 2284986, 3046648, 4569972, 6093296, 9139944, 18279888]

約数ペア:

[(1, 18279888), (2, 9139944), (3, 6093296), (4, 4569972), (6, 3046648), (8, 2284986), (11, 1661808), (12, 1523324), (16, 1142493), (22, 830904), (24, 761662), (33, 553936), (44, 415452), (48, 380831), (66, 276968), (88, 207726), (89, 205392), (132, 138484), (176, 103863), (178, 102696), (264, 69242), (267, 68464), (356, 51348), (389, 46992), (528, 34621), (534, 34232), (712, 25674), (778, 23496), (979, 18672), (1068, 17116), (1167, 15664), (1424, 12837), (1556, 11748), (1958, 9336), (2136, 8558), (2334, 7832), (2937, 6224), (3112, 5874), (3916, 4668), (4272, 4279)]