80887720

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{18899}}^1$

素因数の和:19017

約数の個数: 32

約数和(自身を含む): 183708000

約数和(自身を除く): 102820280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 18899, 37798, 75596, 94495, 151192, 188990, 377980, 755960, 2022193, 4044386, 8088772, 10110965, 16177544, 20221930, 40443860, 80887720]

約数ペア:

[(1, 80887720), (2, 40443860), (4, 20221930), (5, 16177544), (8, 10110965), (10, 8088772), (20, 4044386), (40, 2022193), (107, 755960), (214, 377980), (428, 188990), (535, 151192), (856, 94495), (1070, 75596), (2140, 37798), (4280, 18899)]