19903125

素因数分解:

$3^1\times 5^5\times {\mathrm{11}}^1\times {\mathrm{193}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 36372672

約数和(自身を除く): 16469547

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 125, 165, 193, 275, 375, 579, 625, 825, 965, 1375, 1875, 2123, 2895, 3125, 4125, 4825, 6369, 6875, 9375, 10615, 14475, 20625, 24125, 31845, 34375, 53075, 72375, 103125, 120625, 159225, 265375, 361875, 603125, 796125, 1326875, 1809375, 3980625, 6634375, 19903125]

約数ペア:

[(1, 19903125), (3, 6634375), (5, 3980625), (11, 1809375), (15, 1326875), (25, 796125), (33, 603125), (55, 361875), (75, 265375), (125, 159225), (165, 120625), (193, 103125), (275, 72375), (375, 53075), (579, 34375), (625, 31845), (825, 24125), (965, 20625), (1375, 14475), (1875, 10615), (2123, 9375), (2895, 6875), (3125, 6369), (4125, 4825)]