164564360

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{15643}}^1$

素因数の和:15917

約数の個数: 32

約数和(自身を含む): 371701440

約数和(自身を除く): 207137080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 15643, 31286, 62572, 78215, 125144, 156430, 312860, 625720, 4114109, 8228218, 16456436, 20570545, 32912872, 41141090, 82282180, 164564360]

約数ペア:

[(1, 164564360), (2, 82282180), (4, 41141090), (5, 32912872), (8, 20570545), (10, 16456436), (20, 8228218), (40, 4114109), (263, 625720), (526, 312860), (1052, 156430), (1315, 125144), (2104, 78215), (2630, 62572), (5260, 31286), (10520, 15643)]