20345740

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{6737}}^1$

素因数の和:6897

約数の個数: 24

約数和(自身を含む): 43015392

約数和(自身を除く): 22669652

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 6737, 13474, 26948, 33685, 67370, 134740, 1017287, 2034574, 4069148, 5086435, 10172870, 20345740]

約数ペア:

[(1, 20345740), (2, 10172870), (4, 5086435), (5, 4069148), (10, 2034574), (20, 1017287), (151, 134740), (302, 67370), (604, 33685), (755, 26948), (1510, 13474), (3020, 6737)]