81535792

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{391999}}^1$

素因数の和:392020

約数の個数: 20

約数和(自身を含む): 170128000

約数和(自身を除く): 88592208

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 391999, 783998, 1567996, 3135992, 5095987, 6271984, 10191974, 20383948, 40767896, 81535792]

約数ペア:

[(1, 81535792), (2, 40767896), (4, 20383948), (8, 10191974), (13, 6271984), (16, 5095987), (26, 3135992), (52, 1567996), (104, 783998), (208, 391999)]