18931170040

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{533573}}^1$

素因数の和:534471

約数の個数: 32

約数和(自身を含む): 42643234080

約数和(自身を除く): 23712064040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 3548, 4435, 7096, 8870, 17740, 35480, 533573, 1067146, 2134292, 2667865, 4268584, 5335730, 10671460, 21342920, 473279251, 946558502, 1893117004, 2366396255, 3786234008, 4732792510, 9465585020, 18931170040]

約数ペア:

[(1, 18931170040), (2, 9465585020), (4, 4732792510), (5, 3786234008), (8, 2366396255), (10, 1893117004), (20, 946558502), (40, 473279251), (887, 21342920), (1774, 10671460), (3548, 5335730), (4435, 4268584), (7096, 2667865), (8870, 2134292), (17740, 1067146), (35480, 533573)]