164496880

素因数分解:

$2^4\times 5^1\times {\mathrm{2056211}}^1$

素因数の和:2056224

約数の個数: 20

約数和(自身を含む): 382455432

約数和(自身を除く): 217958552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2056211, 4112422, 8224844, 10281055, 16449688, 20562110, 32899376, 41124220, 82248440, 164496880]

約数ペア:

[(1, 164496880), (2, 82248440), (4, 41124220), (5, 32899376), (8, 20562110), (10, 16449688), (16, 10281055), (20, 8224844), (40, 4112422), (80, 2056211)]