28206925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1381}}^1$

素因数の和:1453

約数の個数: 24

約数和(自身を含む): 37700960

約数和(自身を除く): 9494035

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 817, 1075, 1381, 4085, 6905, 20425, 26239, 34525, 59383, 131195, 296915, 655975, 1128277, 1484575, 5641385, 28206925]

約数ペア:

[(1, 28206925), (5, 5641385), (19, 1484575), (25, 1128277), (43, 655975), (95, 296915), (215, 131195), (475, 59383), (817, 34525), (1075, 26239), (1381, 20425), (4085, 6905)]