20157500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{733}}^1$

素因数の和:768

約数の個数: 60

約数和(自身を含む): 48153336

約数和(自身を除く): 27995836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 625, 733, 1100, 1250, 1375, 1466, 2500, 2750, 2932, 3665, 5500, 6875, 7330, 8063, 13750, 14660, 16126, 18325, 27500, 32252, 36650, 40315, 73300, 80630, 91625, 161260, 183250, 201575, 366500, 403150, 458125, 806300, 916250, 1007875, 1832500, 2015750, 4031500, 5039375, 10078750, 20157500]

約数ペア:

[(1, 20157500), (2, 10078750), (4, 5039375), (5, 4031500), (10, 2015750), (11, 1832500), (20, 1007875), (22, 916250), (25, 806300), (44, 458125), (50, 403150), (55, 366500), (100, 201575), (110, 183250), (125, 161260), (220, 91625), (250, 80630), (275, 73300), (500, 40315), (550, 36650), (625, 32252), (733, 27500), (1100, 18325), (1250, 16126), (1375, 14660), (1466, 13750), (2500, 8063), (2750, 7330), (2932, 6875), (3665, 5500)]