81518440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{88607}}^1$

素因数の和:88641

約数の個数: 32

約数和(自身を含む): 191393280

約数和(自身を除く): 109874840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 88607, 177214, 354428, 443035, 708856, 886070, 1772140, 2037961, 3544280, 4075922, 8151844, 10189805, 16303688, 20379610, 40759220, 81518440]

約数ペア:

[(1, 81518440), (2, 40759220), (4, 20379610), (5, 16303688), (8, 10189805), (10, 8151844), (20, 4075922), (23, 3544280), (40, 2037961), (46, 1772140), (92, 886070), (115, 708856), (184, 443035), (230, 354428), (460, 177214), (920, 88607)]