81867745

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{1949}}^1$

素因数の和:2256

約数の個数: 16

約数和(自身を含む): 101836800

約数和(自身を除く): 19969055

約数列:

[1, 5, 31, 155, 271, 1355, 1949, 8401, 9745, 42005, 60419, 302095, 528179, 2640895, 16373549, 81867745]

約数ペア:

[(1, 81867745), (5, 16373549), (31, 2640895), (155, 528179), (271, 302095), (1355, 60419), (1949, 42005), (8401, 9745)]