66362540

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{12911}}^1$

素因数の和:13177

約数の個数: 24

約数和(自身を含む): 139914432

約数和(自身を除く): 73551892

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 12911, 25822, 51644, 64555, 129110, 258220, 3318127, 6636254, 13272508, 16590635, 33181270, 66362540]

約数ペア:

[(1, 66362540), (2, 33181270), (4, 16590635), (5, 13272508), (10, 6636254), (20, 3318127), (257, 258220), (514, 129110), (1028, 64555), (1285, 51644), (2570, 25822), (5140, 12911)]