128407888

素因数分解:

$2^4\times 7^1\times {\mathrm{577}}^1\times {\mathrm{1987}}^1$

素因数の和:2579

約数の個数: 40

約数和(自身を含む): 284967872

約数和(自身を除く): 156559984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 577, 1154, 1987, 2308, 3974, 4039, 4616, 7948, 8078, 9232, 13909, 15896, 16156, 27818, 31792, 32312, 55636, 64624, 111272, 222544, 1146499, 2292998, 4585996, 8025493, 9171992, 16050986, 18343984, 32101972, 64203944, 128407888]

約数ペア:

[(1, 128407888), (2, 64203944), (4, 32101972), (7, 18343984), (8, 16050986), (14, 9171992), (16, 8025493), (28, 4585996), (56, 2292998), (112, 1146499), (577, 222544), (1154, 111272), (1987, 64624), (2308, 55636), (3974, 32312), (4039, 31792), (4616, 27818), (7948, 16156), (8078, 15896), (9232, 13909)]