19939700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18127}}^1$

素因数の和:18152

約数の個数: 36

約数和(自身を含む): 47205312

約数和(自身を除く): 27265612

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18127, 36254, 72508, 90635, 181270, 199397, 362540, 398794, 453175, 797588, 906350, 996985, 1812700, 1993970, 3987940, 4984925, 9969850, 19939700]

約数ペア:

[(1, 19939700), (2, 9969850), (4, 4984925), (5, 3987940), (10, 1993970), (11, 1812700), (20, 996985), (22, 906350), (25, 797588), (44, 453175), (50, 398794), (55, 362540), (100, 199397), (110, 181270), (220, 90635), (275, 72508), (550, 36254), (1100, 18127)]