31438990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{919}}^1$

素因数の和:1248

約数の個数: 32

約数和(自身を含む): 62000640

約数和(自身を除く): 30561650

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 311, 622, 919, 1555, 1838, 3110, 3421, 4595, 6842, 9190, 10109, 17105, 20218, 34210, 50545, 101090, 285809, 571618, 1429045, 2858090, 3143899, 6287798, 15719495, 31438990]

約数ペア:

[(1, 31438990), (2, 15719495), (5, 6287798), (10, 3143899), (11, 2858090), (22, 1429045), (55, 571618), (110, 285809), (311, 101090), (622, 50545), (919, 34210), (1555, 20218), (1838, 17105), (3110, 10109), (3421, 9190), (4595, 6842)]