138915520

素因数分解:

$2^6\times 5^1\times {\mathrm{434111}}^1$

素因数の和:434128

約数の個数: 28

約数和(自身を含む): 330793344

約数和(自身を除く): 191877824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 434111, 868222, 1736444, 2170555, 3472888, 4341110, 6945776, 8682220, 13891552, 17364440, 27783104, 34728880, 69457760, 138915520]

約数ペア:

[(1, 138915520), (2, 69457760), (4, 34728880), (5, 27783104), (8, 17364440), (10, 13891552), (16, 8682220), (20, 6945776), (32, 4341110), (40, 3472888), (64, 2170555), (80, 1736444), (160, 868222), (320, 434111)]