209984240

素因数分解:

$2^4\times 5^1\times {\mathrm{2624803}}^1$

素因数の和:2624816

約数の個数: 20

約数和(自身を含む): 488213544

約数和(自身を除く): 278229304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2624803, 5249606, 10499212, 13124015, 20998424, 26248030, 41996848, 52496060, 104992120, 209984240]

約数ペア:

[(1, 209984240), (2, 104992120), (4, 52496060), (5, 41996848), (8, 26248030), (10, 20998424), (16, 13124015), (20, 10499212), (40, 5249606), (80, 2624803)]