28114540

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{20981}}^1$

素因数の和:21057

約数の個数: 24

約数和(自身を含む): 59924592

約数和(自身を除く): 31810052

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 20981, 41962, 83924, 104905, 209810, 419620, 1405727, 2811454, 5622908, 7028635, 14057270, 28114540]

約数ペア:

[(1, 28114540), (2, 14057270), (4, 7028635), (5, 5622908), (10, 2811454), (20, 1405727), (67, 419620), (134, 209810), (268, 104905), (335, 83924), (670, 41962), (1340, 20981)]