9000280

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1009}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 20361600

約数和(自身を除く): 11361320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1009, 1115, 1784, 2018, 2230, 4036, 4460, 5045, 8072, 8920, 10090, 20180, 40360, 225007, 450014, 900028, 1125035, 1800056, 2250070, 4500140, 9000280]

約数ペア:

[(1, 9000280), (2, 4500140), (4, 2250070), (5, 1800056), (8, 1125035), (10, 900028), (20, 450014), (40, 225007), (223, 40360), (446, 20180), (892, 10090), (1009, 8920), (1115, 8072), (1784, 5045), (2018, 4460), (2230, 4036)]