28427775

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{12227}}^1$

素因数の和:12271

約数の個数: 24

約数和(自身を含む): 48520704

約数和(自身を除く): 20092929

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 12227, 36681, 61135, 183405, 305675, 379037, 917025, 1137111, 1895185, 5685555, 9475925, 28427775]

約数ペア:

[(1, 28427775), (3, 9475925), (5, 5685555), (15, 1895185), (25, 1137111), (31, 917025), (75, 379037), (93, 305675), (155, 183405), (465, 61135), (775, 36681), (2325, 12227)]