54997840

素因数分解:

$2^4\times 5^1\times {\mathrm{687473}}^1$

素因数の和:687486

約数の個数: 20

約数和(自身を含む): 127870164

約数和(自身を除く): 72872324

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 687473, 1374946, 2749892, 3437365, 5499784, 6874730, 10999568, 13749460, 27498920, 54997840]

約数ペア:

[(1, 54997840), (2, 27498920), (4, 13749460), (5, 10999568), (8, 6874730), (10, 5499784), (16, 3437365), (20, 2749892), (40, 1374946), (80, 687473)]