8136980

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{971}}^1$

素因数の和:1399

約数の個数: 24

約数和(自身を含む): 17146080

約数和(自身を除く): 9009100

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 971, 1676, 1942, 2095, 3884, 4190, 4855, 8380, 9710, 19420, 406849, 813698, 1627396, 2034245, 4068490, 8136980]

約数ペア:

[(1, 8136980), (2, 4068490), (4, 2034245), (5, 1627396), (10, 813698), (20, 406849), (419, 19420), (838, 9710), (971, 8380), (1676, 4855), (1942, 4190), (2095, 3884)]