20123077640

素因数分解:

$2^3\times 5^1\times {\mathrm{16693}}^1\times {\mathrm{30137}}^1$

素因数の和:46841

約数の個数: 32

約数和(自身を含む): 45281139480

約数和(自身を除く): 25158061840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 16693, 30137, 33386, 60274, 66772, 83465, 120548, 133544, 150685, 166930, 241096, 301370, 333860, 602740, 667720, 1205480, 503076941, 1006153882, 2012307764, 2515384705, 4024615528, 5030769410, 10061538820, 20123077640]

約数ペア:

[(1, 20123077640), (2, 10061538820), (4, 5030769410), (5, 4024615528), (8, 2515384705), (10, 2012307764), (20, 1006153882), (40, 503076941), (16693, 1205480), (30137, 667720), (33386, 602740), (60274, 333860), (66772, 301370), (83465, 241096), (120548, 166930), (133544, 150685)]