7886780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3259}}^1$

素因数の和:3290

約数の個数: 36

約数和(自身を含む): 18210360

約数和(自身を除く): 10323580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 3259, 6518, 13036, 16295, 32590, 35849, 65180, 71698, 143396, 179245, 358490, 394339, 716980, 788678, 1577356, 1971695, 3943390, 7886780]

約数ペア:

[(1, 7886780), (2, 3943390), (4, 1971695), (5, 1577356), (10, 788678), (11, 716980), (20, 394339), (22, 358490), (44, 179245), (55, 143396), (110, 71698), (121, 65180), (220, 35849), (242, 32590), (484, 16295), (605, 13036), (1210, 6518), (2420, 3259)]