20051900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18229}}^1$

素因数の和:18254

約数の個数: 36

約数和(自身を含む): 47470920

約数和(自身を除く): 27419020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18229, 36458, 72916, 91145, 182290, 200519, 364580, 401038, 455725, 802076, 911450, 1002595, 1822900, 2005190, 4010380, 5012975, 10025950, 20051900]

約数ペア:

[(1, 20051900), (2, 10025950), (4, 5012975), (5, 4010380), (10, 2005190), (11, 1822900), (20, 1002595), (22, 911450), (25, 802076), (44, 455725), (50, 401038), (55, 364580), (100, 200519), (110, 182290), (220, 91145), (275, 72916), (550, 36458), (1100, 18229)]