15138440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19919}}^1$

素因数の和:19949

約数の個数: 32

約数和(自身を含む): 35856000

約数和(自身を除く): 20717560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 19919, 39838, 79676, 99595, 159352, 199190, 378461, 398380, 756922, 796760, 1513844, 1892305, 3027688, 3784610, 7569220, 15138440]

約数ペア:

[(1, 15138440), (2, 7569220), (4, 3784610), (5, 3027688), (8, 1892305), (10, 1513844), (19, 796760), (20, 756922), (38, 398380), (40, 378461), (76, 199190), (95, 159352), (152, 99595), (190, 79676), (380, 39838), (760, 19919)]