19080380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{86729}}^1$

素因数の和:86749

約数の個数: 24

約数和(自身を含む): 43711920

約数和(自身を除く): 24631540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 86729, 173458, 346916, 433645, 867290, 954019, 1734580, 1908038, 3816076, 4770095, 9540190, 19080380]

約数ペア:

[(1, 19080380), (2, 9540190), (4, 4770095), (5, 3816076), (10, 1908038), (11, 1734580), (20, 954019), (22, 867290), (44, 433645), (55, 346916), (110, 173458), (220, 86729)]