28097775

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{2657}}^1$

素因数の和:2720

約数の個数: 36

約数和(自身を含む): 51416352

約数和(自身を除く): 23318577

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 2115, 2657, 3525, 7971, 10575, 13285, 23913, 39855, 66425, 119565, 124879, 199275, 374637, 597825, 624395, 1123911, 1873185, 3121975, 5619555, 9365925, 28097775]

約数ペア:

[(1, 28097775), (3, 9365925), (5, 5619555), (9, 3121975), (15, 1873185), (25, 1123911), (45, 624395), (47, 597825), (75, 374637), (141, 199275), (225, 124879), (235, 119565), (423, 66425), (705, 39855), (1175, 23913), (2115, 13285), (2657, 10575), (3525, 7971)]