81708765

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{173}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 141015168

約数和(自身を除く): 59306403

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 173, 185, 345, 519, 555, 851, 865, 1369, 2553, 2595, 3979, 4107, 4255, 6401, 6845, 11937, 12765, 19203, 19895, 20535, 31487, 32005, 59685, 94461, 96015, 147223, 157435, 236837, 441669, 472305, 710511, 736115, 1184185, 2208345, 3552555, 5447251, 16341753, 27236255, 81708765]

約数ペア:

[(1, 81708765), (3, 27236255), (5, 16341753), (15, 5447251), (23, 3552555), (37, 2208345), (69, 1184185), (111, 736115), (115, 710511), (173, 472305), (185, 441669), (345, 236837), (519, 157435), (555, 147223), (851, 96015), (865, 94461), (1369, 59685), (2553, 32005), (2595, 31487), (3979, 20535), (4107, 19895), (4255, 19203), (6401, 12765), (6845, 11937)]