81580345

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{30271}}^1$

素因数の和:30301

約数の個数: 24

約数和(自身を含む): 124236288

約数和(自身を除く): 42655943

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 30271, 151355, 211897, 332981, 1059485, 1483279, 1664905, 2330867, 7416395, 11654335, 16316069, 81580345]

約数ペア:

[(1, 81580345), (5, 16316069), (7, 11654335), (11, 7416395), (35, 2330867), (49, 1664905), (55, 1483279), (77, 1059485), (245, 332981), (385, 211897), (539, 151355), (2695, 30271)]