81334855

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{10709}}^1$

素因数の和:10759

約数の個数: 24

約数和(自身を含む): 117210240

約数和(自身を除く): 35875385

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 7595, 10709, 53545, 74963, 331979, 374815, 524741, 1659895, 2323853, 2623705, 11619265, 16266971, 81334855]

約数ペア:

[(1, 81334855), (5, 16266971), (7, 11619265), (31, 2623705), (35, 2323853), (49, 1659895), (155, 524741), (217, 374815), (245, 331979), (1085, 74963), (1519, 53545), (7595, 10709)]