256133068

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{21997}}^1$

素因数の和:22113

約数の個数: 24

約数和(自身を含む): 465653664

約数和(自身を除く): 209520596

約数列:

[1, 2, 4, 41, 71, 82, 142, 164, 284, 2911, 5822, 11644, 21997, 43994, 87988, 901877, 1561787, 1803754, 3123574, 3607508, 6247148, 64033267, 128066534, 256133068]

約数ペア:

[(1, 256133068), (2, 128066534), (4, 64033267), (41, 6247148), (71, 3607508), (82, 3123574), (142, 1803754), (164, 1561787), (284, 901877), (2911, 87988), (5822, 43994), (11644, 21997)]