81781336

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{112337}}^1$

素因数の和:112363

約数の個数: 32

約数和(自身を含む): 188727840

約数和(自身を除く): 106946504

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 112337, 224674, 449348, 786359, 898696, 1460381, 1572718, 2920762, 3145436, 5841524, 6290872, 10222667, 11683048, 20445334, 40890668, 81781336]

約数ペア:

[(1, 81781336), (2, 40890668), (4, 20445334), (7, 11683048), (8, 10222667), (13, 6290872), (14, 5841524), (26, 3145436), (28, 2920762), (52, 1572718), (56, 1460381), (91, 898696), (104, 786359), (182, 449348), (364, 224674), (728, 112337)]