128421306

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12763}}^1$

素因数の和:12827

約数の個数: 48

約数和(自身を含む): 306642336

約数和(自身を除く): 178221030

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 78, 86, 117, 129, 234, 258, 387, 559, 774, 1118, 1677, 3354, 5031, 10062, 12763, 25526, 38289, 76578, 114867, 165919, 229734, 331838, 497757, 548809, 995514, 1097618, 1493271, 1646427, 2986542, 3292854, 4939281, 7134517, 9878562, 14269034, 21403551, 42807102, 64210653, 128421306]

約数ペア:

[(1, 128421306), (2, 64210653), (3, 42807102), (6, 21403551), (9, 14269034), (13, 9878562), (18, 7134517), (26, 4939281), (39, 3292854), (43, 2986542), (78, 1646427), (86, 1493271), (117, 1097618), (129, 995514), (234, 548809), (258, 497757), (387, 331838), (559, 229734), (774, 165919), (1118, 114867), (1677, 76578), (3354, 38289), (5031, 25526), (10062, 12763)]