85604420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389111}}^1$

素因数の和:389131

約数の個数: 24

約数和(自身を含む): 196112448

約数和(自身を除く): 110508028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 389111, 778222, 1556444, 1945555, 3891110, 4280221, 7782220, 8560442, 17120884, 21401105, 42802210, 85604420]

約数ペア:

[(1, 85604420), (2, 42802210), (4, 21401105), (5, 17120884), (10, 8560442), (11, 7782220), (20, 4280221), (22, 3891110), (44, 1945555), (55, 1556444), (110, 778222), (220, 389111)]