12778865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{821}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 16808256

約数和(自身を除く): 4029391

約数列:

[1, 5, 11, 55, 283, 821, 1415, 3113, 4105, 9031, 15565, 45155, 232343, 1161715, 2555773, 12778865]

約数ペア:

[(1, 12778865), (5, 2555773), (11, 1161715), (55, 232343), (283, 45155), (821, 15565), (1415, 9031), (3113, 4105)]