28217780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61343}}^1$

素因数の和:61375

約数の個数: 24

約数和(自身を含む): 61834752

約数和(自身を除く): 33616972

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 61343, 122686, 245372, 306715, 613430, 1226860, 1410889, 2821778, 5643556, 7054445, 14108890, 28217780]

約数ペア:

[(1, 28217780), (2, 14108890), (4, 7054445), (5, 5643556), (10, 2821778), (20, 1410889), (23, 1226860), (46, 613430), (92, 306715), (115, 245372), (230, 122686), (460, 61343)]