28457065

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{283}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 44903808

約数和(自身を除く): 16446743

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 169, 221, 283, 455, 595, 845, 1105, 1183, 1415, 1547, 1981, 2873, 3679, 4811, 5915, 7735, 9905, 14365, 18395, 20111, 24055, 25753, 33677, 47827, 62543, 100555, 128765, 168385, 239135, 312715, 334789, 437801, 813059, 1673945, 2189005, 4065295, 5691413, 28457065]

約数ペア:

[(1, 28457065), (5, 5691413), (7, 4065295), (13, 2189005), (17, 1673945), (35, 813059), (65, 437801), (85, 334789), (91, 312715), (119, 239135), (169, 168385), (221, 128765), (283, 100555), (455, 62543), (595, 47827), (845, 33677), (1105, 25753), (1183, 24055), (1415, 20111), (1547, 18395), (1981, 14365), (2873, 9905), (3679, 7735), (4811, 5915)]