19915060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90523}}^1$

素因数の和:90543

約数の個数: 24

約数和(自身を含む): 45624096

約数和(自身を除く): 25709036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90523, 181046, 362092, 452615, 905230, 995753, 1810460, 1991506, 3983012, 4978765, 9957530, 19915060]

約数ペア:

[(1, 19915060), (2, 9957530), (4, 4978765), (5, 3983012), (10, 1991506), (11, 1810460), (20, 995753), (22, 905230), (44, 452615), (55, 362092), (110, 181046), (220, 90523)]