68807440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{66161}}^1$

素因数の和:66187

約数の個数: 40

約数和(自身を含む): 172285848

約数和(自身を除く): 103478408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 66161, 132322, 264644, 330805, 529288, 661610, 860093, 1058576, 1323220, 1720186, 2646440, 3440372, 4300465, 5292880, 6880744, 8600930, 13761488, 17201860, 34403720, 68807440]

約数ペア:

[(1, 68807440), (2, 34403720), (4, 17201860), (5, 13761488), (8, 8600930), (10, 6880744), (13, 5292880), (16, 4300465), (20, 3440372), (26, 2646440), (40, 1720186), (52, 1323220), (65, 1058576), (80, 860093), (104, 661610), (130, 529288), (208, 330805), (260, 264644), (520, 132322), (1040, 66161)]