20880200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9491}}^1$

素因数の和:9518

約数の個数: 48

約数和(自身を含む): 52965360

約数和(自身を除く): 32085160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9491, 18982, 37964, 47455, 75928, 94910, 104401, 189820, 208802, 237275, 379640, 417604, 474550, 522005, 835208, 949100, 1044010, 1898200, 2088020, 2610025, 4176040, 5220050, 10440100, 20880200]

約数ペア:

[(1, 20880200), (2, 10440100), (4, 5220050), (5, 4176040), (8, 2610025), (10, 2088020), (11, 1898200), (20, 1044010), (22, 949100), (25, 835208), (40, 522005), (44, 474550), (50, 417604), (55, 379640), (88, 237275), (100, 208802), (110, 189820), (200, 104401), (220, 94910), (275, 75928), (440, 47455), (550, 37964), (1100, 18982), (2200, 9491)]