68556440

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{9907}}^1$

素因数の和:10091

約数の個数: 32

約数和(自身を含む): 155159280

約数和(自身を除く): 86602840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 9907, 19814, 39628, 49535, 79256, 99070, 198140, 396280, 1713911, 3427822, 6855644, 8569555, 13711288, 17139110, 34278220, 68556440]

約数ペア:

[(1, 68556440), (2, 34278220), (4, 17139110), (5, 13711288), (8, 8569555), (10, 6855644), (20, 3427822), (40, 1713911), (173, 396280), (346, 198140), (692, 99070), (865, 79256), (1384, 49535), (1730, 39628), (3460, 19814), (6920, 9907)]