85028780

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{20149}}^1$

素因数の和:20369

約数の個数: 24

約数和(自身を含む): 179415600

約数和(自身を除く): 94386820

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 20149, 40298, 80596, 100745, 201490, 402980, 4251439, 8502878, 17005756, 21257195, 42514390, 85028780]

約数ペア:

[(1, 85028780), (2, 42514390), (4, 21257195), (5, 17005756), (10, 8502878), (20, 4251439), (211, 402980), (422, 201490), (844, 100745), (1055, 80596), (2110, 40298), (4220, 20149)]