219216560

素因数分解:

$2^4\times 5^1\times {\mathrm{2740207}}^1$

素因数の和:2740220

約数の個数: 20

約数和(自身を含む): 509678688

約数和(自身を除く): 290462128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2740207, 5480414, 10960828, 13701035, 21921656, 27402070, 43843312, 54804140, 109608280, 219216560]

約数ペア:

[(1, 219216560), (2, 109608280), (4, 54804140), (5, 43843312), (8, 27402070), (10, 21921656), (16, 13701035), (20, 10960828), (40, 5480414), (80, 2740207)]