20723450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{919}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 43122240

約数和(自身を除く): 22398790

約数列:

[1, 2, 5, 10, 11, 22, 25, 41, 50, 55, 82, 110, 205, 275, 410, 451, 550, 902, 919, 1025, 1838, 2050, 2255, 4510, 4595, 9190, 10109, 11275, 20218, 22550, 22975, 37679, 45950, 50545, 75358, 101090, 188395, 252725, 376790, 414469, 505450, 828938, 941975, 1883950, 2072345, 4144690, 10361725, 20723450]

約数ペア:

[(1, 20723450), (2, 10361725), (5, 4144690), (10, 2072345), (11, 1883950), (22, 941975), (25, 828938), (41, 505450), (50, 414469), (55, 376790), (82, 252725), (110, 188395), (205, 101090), (275, 75358), (410, 50545), (451, 45950), (550, 37679), (902, 22975), (919, 22550), (1025, 20218), (1838, 11275), (2050, 10109), (2255, 9190), (4510, 4595)]