222728740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{856649}}^1$

素因数の和:856671

約数の個数: 24

約数和(自身を含む): 503710200

約数和(自身を除く): 280981460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 856649, 1713298, 3426596, 4283245, 8566490, 11136437, 17132980, 22272874, 44545748, 55682185, 111364370, 222728740]

約数ペア:

[(1, 222728740), (2, 111364370), (4, 55682185), (5, 44545748), (10, 22272874), (13, 17132980), (20, 11136437), (26, 8566490), (52, 4283245), (65, 3426596), (130, 1713298), (260, 856649)]