123005720

素因数分解:

$2^3\times 5^1\times {\mathrm{1439}}^1\times {\mathrm{2137}}^1$

素因数の和:3587

約数の個数: 32

約数和(自身を含む): 277084800

約数和(自身を除く): 154079080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1439, 2137, 2878, 4274, 5756, 7195, 8548, 10685, 11512, 14390, 17096, 21370, 28780, 42740, 57560, 85480, 3075143, 6150286, 12300572, 15375715, 24601144, 30751430, 61502860, 123005720]

約数ペア:

[(1, 123005720), (2, 61502860), (4, 30751430), (5, 24601144), (8, 15375715), (10, 12300572), (20, 6150286), (40, 3075143), (1439, 85480), (2137, 57560), (2878, 42740), (4274, 28780), (5756, 21370), (7195, 17096), (8548, 14390), (10685, 11512)]