20209750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7349}}^1$

素因数の和:7377

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 21067850

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7349, 14698, 36745, 73490, 80839, 161678, 183725, 367450, 404195, 808390, 918625, 1837250, 2020975, 4041950, 10104875, 20209750]

約数ペア:

[(1, 20209750), (2, 10104875), (5, 4041950), (10, 2020975), (11, 1837250), (22, 918625), (25, 808390), (50, 404195), (55, 367450), (110, 183725), (125, 161678), (250, 80839), (275, 73490), (550, 36745), (1375, 14698), (2750, 7349)]