20966060

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4079}}^1$

素因数の和:4345

約数の個数: 24

約数和(自身を含む): 44210880

約数和(自身を除く): 23244820

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 4079, 5140, 8158, 16316, 20395, 40790, 81580, 1048303, 2096606, 4193212, 5241515, 10483030, 20966060]

約数ペア:

[(1, 20966060), (2, 10483030), (4, 5241515), (5, 4193212), (10, 2096606), (20, 1048303), (257, 81580), (514, 40790), (1028, 20395), (1285, 16316), (2570, 8158), (4079, 5140)]