81306775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{1091}}^1$

素因数の和:1383

約数の個数: 24

約数和(自身を含む): 110492928

約数和(自身を除く): 29186153

約数列:

[1, 5, 11, 25, 55, 271, 275, 1091, 1355, 2981, 5455, 6775, 12001, 14905, 27275, 60005, 74525, 295661, 300025, 1478305, 3252271, 7391525, 16261355, 81306775]

約数ペア:

[(1, 81306775), (5, 16261355), (11, 7391525), (25, 3252271), (55, 1478305), (271, 300025), (275, 295661), (1091, 74525), (1355, 60005), (2981, 27275), (5455, 14905), (6775, 12001)]