20349080

素因数分解:

$2^3\times 5^1\times {\mathrm{508727}}^1$

素因数の和:508738

約数の個数: 16

約数和(自身を含む): 45785520

約数和(自身を除く): 25436440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 508727, 1017454, 2034908, 2543635, 4069816, 5087270, 10174540, 20349080]

約数ペア:

[(1, 20349080), (2, 10174540), (4, 5087270), (5, 4069816), (8, 2543635), (10, 2034908), (20, 1017454), (40, 508727)]