392445

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:56

約数の個数: 48

約数和(自身を含む): 786240

約数和(自身を除く): 393795

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 81, 85, 95, 135, 153, 171, 243, 255, 285, 323, 405, 459, 513, 765, 855, 969, 1215, 1377, 1539, 1615, 2295, 2565, 2907, 4131, 4617, 4845, 6885, 7695, 8721, 14535, 20655, 23085, 26163, 43605, 78489, 130815, 392445]

約数ペア:

[(1, 392445), (3, 130815), (5, 78489), (9, 43605), (15, 26163), (17, 23085), (19, 20655), (27, 14535), (45, 8721), (51, 7695), (57, 6885), (81, 4845), (85, 4617), (95, 4131), (135, 2907), (153, 2565), (171, 2295), (243, 1615), (255, 1539), (285, 1377), (323, 1215), (405, 969), (459, 855), (513, 765)]