9989840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17839}}^1$

素因数の和:17859

約数の個数: 40

約数和(自身を含む): 26545920

約数和(自身を除く): 16556080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 17839, 35678, 71356, 89195, 124873, 142712, 178390, 249746, 285424, 356780, 499492, 624365, 713560, 998984, 1248730, 1427120, 1997968, 2497460, 4994920, 9989840]

約数ペア:

[(1, 9989840), (2, 4994920), (4, 2497460), (5, 1997968), (7, 1427120), (8, 1248730), (10, 998984), (14, 713560), (16, 624365), (20, 499492), (28, 356780), (35, 285424), (40, 249746), (56, 178390), (70, 142712), (80, 124873), (112, 89195), (140, 71356), (280, 35678), (560, 17839)]