128999988

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{275641}}^1$

素因数の和:275664

約数の個数: 36

約数和(自身を含む): 351167908

約数和(自身を除く): 222167920

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 275641, 551282, 826923, 1102564, 1653846, 2480769, 3307692, 3583333, 4961538, 7166666, 9923076, 10749999, 14333332, 21499998, 32249997, 42999996, 64499994, 128999988]

約数ペア:

[(1, 128999988), (2, 64499994), (3, 42999996), (4, 32249997), (6, 21499998), (9, 14333332), (12, 10749999), (13, 9923076), (18, 7166666), (26, 4961538), (36, 3583333), (39, 3307692), (52, 2480769), (78, 1653846), (117, 1102564), (156, 826923), (234, 551282), (468, 275641)]