205420240

素因数分解:

$2^4\times 5^1\times {\mathrm{2567753}}^1$

素因数の和:2567766

約数の個数: 20

約数和(自身を含む): 477602244

約数和(自身を除く): 272182004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2567753, 5135506, 10271012, 12838765, 20542024, 25677530, 41084048, 51355060, 102710120, 205420240]

約数ペア:

[(1, 205420240), (2, 102710120), (4, 51355060), (5, 41084048), (8, 25677530), (10, 20542024), (16, 12838765), (20, 10271012), (40, 5135506), (80, 2567753)]