11656780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8209}}^1$

素因数の和:8289

約数の個数: 24

約数和(自身を含む): 24827040

約数和(自身を除く): 13170260

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 8209, 16418, 32836, 41045, 82090, 164180, 582839, 1165678, 2331356, 2914195, 5828390, 11656780]

約数ペア:

[(1, 11656780), (2, 5828390), (4, 2914195), (5, 2331356), (10, 1165678), (20, 582839), (71, 164180), (142, 82090), (284, 41045), (355, 32836), (710, 16418), (1420, 8209)]