81145168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{1063}}^1$

素因数の和:1451

約数の個数: 40

約数和(自身を含む): 169933568

約数和(自身を除く): 88788400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 367, 734, 1063, 1468, 2126, 2936, 4252, 4771, 5872, 8504, 9542, 13819, 17008, 19084, 27638, 38168, 55276, 76336, 110552, 221104, 390121, 780242, 1560484, 3120968, 5071573, 6241936, 10143146, 20286292, 40572584, 81145168]

約数ペア:

[(1, 81145168), (2, 40572584), (4, 20286292), (8, 10143146), (13, 6241936), (16, 5071573), (26, 3120968), (52, 1560484), (104, 780242), (208, 390121), (367, 221104), (734, 110552), (1063, 76336), (1468, 55276), (2126, 38168), (2936, 27638), (4252, 19084), (4771, 17008), (5872, 13819), (8504, 9542)]