81354564

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{20359}}^1$

素因数の和:20409

約数の個数: 48

約数和(自身を含む): 216630400

約数和(自身を除く): 135275836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 20359, 40718, 61077, 81436, 122154, 183231, 244308, 366462, 549693, 732924, 753283, 1099386, 1506566, 2198772, 2259849, 3013132, 4519698, 6779547, 9039396, 13559094, 20338641, 27118188, 40677282, 81354564]

約数ペア:

[(1, 81354564), (2, 40677282), (3, 27118188), (4, 20338641), (6, 13559094), (9, 9039396), (12, 6779547), (18, 4519698), (27, 3013132), (36, 2259849), (37, 2198772), (54, 1506566), (74, 1099386), (108, 753283), (111, 732924), (148, 549693), (222, 366462), (333, 244308), (444, 183231), (666, 122154), (999, 81436), (1332, 61077), (1998, 40718), (3996, 20359)]