28268865

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 25644735

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 103, 107, 135, 171, 285, 309, 321, 513, 515, 535, 855, 927, 963, 1545, 1605, 1957, 2033, 2565, 2781, 2889, 4635, 4815, 5871, 6099, 9785, 10165, 11021, 13905, 14445, 17613, 18297, 29355, 30495, 33063, 52839, 54891, 55105, 88065, 91485, 99189, 165315, 209399, 264195, 274455, 297567, 495945, 628197, 1046995, 1487835, 1884591, 3140985, 5653773, 9422955, 28268865]

約数ペア:

[(1, 28268865), (3, 9422955), (5, 5653773), (9, 3140985), (15, 1884591), (19, 1487835), (27, 1046995), (45, 628197), (57, 495945), (95, 297567), (103, 274455), (107, 264195), (135, 209399), (171, 165315), (285, 99189), (309, 91485), (321, 88065), (513, 55105), (515, 54891), (535, 52839), (855, 33063), (927, 30495), (963, 29355), (1545, 18297), (1605, 17613), (1957, 14445), (2033, 13905), (2565, 11021), (2781, 10165), (2889, 9785), (4635, 6099), (4815, 5871)]