20160020541

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1\times {\mathrm{1997}}^1$

素因数の和:2745

約数の個数: 32

約数和(自身を含む): 27766126080

約数和(自身を除く): 7606105539

約数列:

[1, 3, 43, 129, 139, 417, 563, 1689, 1997, 5977, 5991, 17931, 24209, 72627, 78257, 85871, 234771, 257613, 277583, 832749, 1124311, 3365051, 3372933, 10095153, 11936069, 35808207, 48345373, 145036119, 156279229, 468837687, 6720006847, 20160020541]

約数ペア:

[(1, 20160020541), (3, 6720006847), (43, 468837687), (129, 156279229), (139, 145036119), (417, 48345373), (563, 35808207), (1689, 11936069), (1997, 10095153), (5977, 3372933), (5991, 3365051), (17931, 1124311), (24209, 832749), (72627, 277583), (78257, 257613), (85871, 234771)]