28399725

素因数分解:

$3^2\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1117}}^1$

素因数の和:1246

約数の個数: 36

約数和(自身を含む): 51363156

約数和(自身を除く): 22963431

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 113, 225, 339, 565, 1017, 1117, 1695, 2825, 3351, 5085, 5585, 8475, 10053, 16755, 25425, 27925, 50265, 83775, 126221, 251325, 378663, 631105, 1135989, 1893315, 3155525, 5679945, 9466575, 28399725]

約数ペア:

[(1, 28399725), (3, 9466575), (5, 5679945), (9, 3155525), (15, 1893315), (25, 1135989), (45, 631105), (75, 378663), (113, 251325), (225, 126221), (339, 83775), (565, 50265), (1017, 27925), (1117, 25425), (1695, 16755), (2825, 10053), (3351, 8475), (5085, 5585)]