81804728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{1597}}^1$

素因数の和:1959

約数の個数: 32

約数和(自身を含む): 162037200

約数和(自身を除く): 80232472

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 337, 674, 1348, 1597, 2696, 3194, 6388, 6403, 12776, 12806, 25612, 30343, 51224, 60686, 121372, 242744, 538189, 1076378, 2152756, 4305512, 10225591, 20451182, 40902364, 81804728]

約数ペア:

[(1, 81804728), (2, 40902364), (4, 20451182), (8, 10225591), (19, 4305512), (38, 2152756), (76, 1076378), (152, 538189), (337, 242744), (674, 121372), (1348, 60686), (1597, 51224), (2696, 30343), (3194, 25612), (6388, 12806), (6403, 12776)]