28229780

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21067}}^1$

素因数の和:21143

約数の個数: 24

約数和(自身を含む): 60170208

約数和(自身を除く): 31940428

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 21067, 42134, 84268, 105335, 210670, 421340, 1411489, 2822978, 5645956, 7057445, 14114890, 28229780]

約数ペア:

[(1, 28229780), (2, 14114890), (4, 7057445), (5, 5645956), (10, 2822978), (20, 1411489), (67, 421340), (134, 210670), (268, 105335), (335, 84268), (670, 42134), (1340, 21067)]