173780240

素因数分解:

$2^4\times 5^1\times {\mathrm{2172253}}^1$

素因数の和:2172266

約数の個数: 20

約数和(自身を含む): 404039244

約数和(自身を除く): 230259004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2172253, 4344506, 8689012, 10861265, 17378024, 21722530, 34756048, 43445060, 86890120, 173780240]

約数ペア:

[(1, 173780240), (2, 86890120), (4, 43445060), (5, 34756048), (8, 21722530), (10, 17378024), (16, 10861265), (20, 8689012), (40, 4344506), (80, 2172253)]