78845745

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28109}}^1$

素因数の和:28145

約数の個数: 32

約数和(自身を含む): 145722240

約数和(自身を除く): 66876495

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 28109, 84327, 140545, 309199, 421635, 477853, 927597, 1433559, 1545995, 2389265, 4637985, 5256383, 7167795, 15769149, 26281915, 78845745]

約数ペア:

[(1, 78845745), (3, 26281915), (5, 15769149), (11, 7167795), (15, 5256383), (17, 4637985), (33, 2389265), (51, 1545995), (55, 1433559), (85, 927597), (165, 477853), (187, 421635), (255, 309199), (561, 140545), (935, 84327), (2805, 28109)]