20514380

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7487}}^1$

素因数の和:7633

約数の個数: 24

約数和(自身を含む): 43400448

約数和(自身を除く): 22886068

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7487, 14974, 29948, 37435, 74870, 149740, 1025719, 2051438, 4102876, 5128595, 10257190, 20514380]

約数ペア:

[(1, 20514380), (2, 10257190), (4, 5128595), (5, 4102876), (10, 2051438), (20, 1025719), (137, 149740), (274, 74870), (548, 37435), (685, 29948), (1370, 14974), (2740, 7487)]