20164908

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 28219092

約数列:

[1, 2, 3, 4, 6, 12, 79, 89, 158, 178, 237, 239, 267, 316, 356, 474, 478, 534, 717, 948, 956, 1068, 1434, 2868, 7031, 14062, 18881, 21093, 21271, 28124, 37762, 42186, 42542, 56643, 63813, 75524, 84372, 85084, 113286, 127626, 226572, 255252, 1680409, 3360818, 5041227, 6721636, 10082454, 20164908]

約数ペア:

[(1, 20164908), (2, 10082454), (3, 6721636), (4, 5041227), (6, 3360818), (12, 1680409), (79, 255252), (89, 226572), (158, 127626), (178, 113286), (237, 85084), (239, 84372), (267, 75524), (316, 63813), (356, 56643), (474, 42542), (478, 42186), (534, 37762), (717, 28124), (948, 21271), (956, 21093), (1068, 18881), (1434, 14062), (2868, 7031)]