81303385

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{7681}}^1$

素因数の和:7788

約数の個数: 16

約数和(自身を含む): 102324240

約数和(自身を除く): 21020855

約数列:

[1, 5, 29, 73, 145, 365, 2117, 7681, 10585, 38405, 222749, 560713, 1113745, 2803565, 16260677, 81303385]

約数ペア:

[(1, 81303385), (5, 16260677), (29, 2803565), (73, 1113745), (145, 560713), (365, 222749), (2117, 38405), (7681, 10585)]