681491778

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{240131}}^1$

素因数の和:240190

約数の個数: 32

約数和(自身を含む): 1521476352

約数和(自身を除く): 839984574

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 129, 258, 473, 946, 1419, 2838, 240131, 480262, 720393, 1440786, 2641441, 5282882, 7924323, 10325633, 15848646, 20651266, 30976899, 61953798, 113581963, 227163926, 340745889, 681491778]

約数ペア:

[(1, 681491778), (2, 340745889), (3, 227163926), (6, 113581963), (11, 61953798), (22, 30976899), (33, 20651266), (43, 15848646), (66, 10325633), (86, 7924323), (129, 5282882), (258, 2641441), (473, 1440786), (946, 720393), (1419, 480262), (2838, 240131)]