28273995

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 53990400

約数和(自身を除く): 25716405

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 73, 95, 135, 151, 171, 219, 285, 365, 453, 513, 657, 755, 855, 1095, 1359, 1387, 1971, 2265, 2565, 2869, 3285, 4077, 4161, 6795, 6935, 8607, 9855, 11023, 12483, 14345, 20385, 20805, 25821, 33069, 37449, 43035, 55115, 62415, 77463, 99207, 129105, 165345, 187245, 209437, 297621, 387315, 496035, 628311, 1047185, 1488105, 1884933, 3141555, 5654799, 9424665, 28273995]

約数ペア:

[(1, 28273995), (3, 9424665), (5, 5654799), (9, 3141555), (15, 1884933), (19, 1488105), (27, 1047185), (45, 628311), (57, 496035), (73, 387315), (95, 297621), (135, 209437), (151, 187245), (171, 165345), (219, 129105), (285, 99207), (365, 77463), (453, 62415), (513, 55115), (657, 43035), (755, 37449), (855, 33069), (1095, 25821), (1359, 20805), (1387, 20385), (1971, 14345), (2265, 12483), (2565, 11023), (2869, 9855), (3285, 8607), (4077, 6935), (4161, 6795)]