201719120

素因数分解:

$2^4\times 5^1\times {\mathrm{2521489}}^1$

素因数の和:2521502

約数の個数: 20

約数和(自身を含む): 468997140

約数和(自身を除く): 267278020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2521489, 5042978, 10085956, 12607445, 20171912, 25214890, 40343824, 50429780, 100859560, 201719120]

約数ペア:

[(1, 201719120), (2, 100859560), (4, 50429780), (5, 40343824), (8, 25214890), (10, 20171912), (16, 12607445), (20, 10085956), (40, 5042978), (80, 2521489)]