169408880

素因数分解:

$2^4\times 5^1\times {\mathrm{2117611}}^1$

素因数の和:2117624

約数の個数: 20

約数和(自身を含む): 393875832

約数和(自身を除く): 224466952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2117611, 4235222, 8470444, 10588055, 16940888, 21176110, 33881776, 42352220, 84704440, 169408880]

約数ペア:

[(1, 169408880), (2, 84704440), (4, 42352220), (5, 33881776), (8, 21176110), (10, 16940888), (16, 10588055), (20, 8470444), (40, 4235222), (80, 2117611)]