28269380

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13723}}^1$

素因数の和:13835

約数の個数: 24

約数和(自身を含む): 59946432

約数和(自身を除く): 31677052

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 13723, 27446, 54892, 68615, 137230, 274460, 1413469, 2826938, 5653876, 7067345, 14134690, 28269380]

約数ペア:

[(1, 28269380), (2, 14134690), (4, 7067345), (5, 5653876), (10, 2826938), (20, 1413469), (103, 274460), (206, 137230), (412, 68615), (515, 54892), (1030, 27446), (2060, 13723)]