164021020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{75239}}^1$

素因数の和:75357

約数の個数: 24

約数和(自身を含む): 347608800

約数和(自身を除く): 183587780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 75239, 150478, 300956, 376195, 752390, 1504780, 8201051, 16402102, 32804204, 41005255, 82010510, 164021020]

約数ペア:

[(1, 164021020), (2, 82010510), (4, 41005255), (5, 32804204), (10, 16402102), (20, 8201051), (109, 1504780), (218, 752390), (436, 376195), (545, 300956), (1090, 150478), (2180, 75239)]