3886940

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1783}}^1$

素因数の和:1901

約数の個数: 24

約数和(自身を含む): 8242080

約数和(自身を除く): 4355140

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 1783, 2180, 3566, 7132, 8915, 17830, 35660, 194347, 388694, 777388, 971735, 1943470, 3886940]

約数ペア:

[(1, 3886940), (2, 1943470), (4, 971735), (5, 777388), (10, 388694), (20, 194347), (109, 35660), (218, 17830), (436, 8915), (545, 7132), (1090, 3566), (1783, 2180)]