81111910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{2371}}^1$

素因数の和:2700

約数の個数: 32

約数和(自身を含む): 159853824

約数和(自身を除く): 78741914

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 311, 622, 1555, 2371, 3110, 3421, 4742, 6842, 11855, 17105, 23710, 26081, 34210, 52162, 130405, 260810, 737381, 1474762, 3686905, 7373810, 8111191, 16222382, 40555955, 81111910]

約数ペア:

[(1, 81111910), (2, 40555955), (5, 16222382), (10, 8111191), (11, 7373810), (22, 3686905), (55, 1474762), (110, 737381), (311, 260810), (622, 130405), (1555, 52162), (2371, 34210), (3110, 26081), (3421, 23710), (4742, 17105), (6842, 11855)]