90636920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{205993}}^1$

素因数の和:206015

約数の個数: 32

約数和(自身を含む): 222473520

約数和(自身を除く): 131836600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 205993, 411986, 823972, 1029965, 1647944, 2059930, 2265923, 4119860, 4531846, 8239720, 9063692, 11329615, 18127384, 22659230, 45318460, 90636920]

約数ペア:

[(1, 90636920), (2, 45318460), (4, 22659230), (5, 18127384), (8, 11329615), (10, 9063692), (11, 8239720), (20, 4531846), (22, 4119860), (40, 2265923), (44, 2059930), (55, 1647944), (88, 1029965), (110, 823972), (220, 411986), (440, 205993)]