20165514710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2531}}^1\times {\mathrm{72431}}^1$

素因数の和:74980

約数の個数: 32

約数和(自身を含む): 39613929984

約数和(自身を除く): 19448415274

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 2531, 5062, 12655, 25310, 27841, 55682, 72431, 139205, 144862, 278410, 362155, 724310, 796741, 1593482, 3983705, 7967410, 183322861, 366645722, 916614305, 1833228610, 2016551471, 4033102942, 10082757355, 20165514710]

約数ペア:

[(1, 20165514710), (2, 10082757355), (5, 4033102942), (10, 2016551471), (11, 1833228610), (22, 916614305), (55, 366645722), (110, 183322861), (2531, 7967410), (5062, 3983705), (12655, 1593482), (25310, 796741), (27841, 724310), (55682, 362155), (72431, 278410), (139205, 144862)]