19909900

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1933}}^1$

素因数の和:2050

約数の個数: 36

約数和(自身を含む): 43646512

約数和(自身を除く): 23736612

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 1933, 2060, 2575, 3866, 5150, 7732, 9665, 10300, 19330, 38660, 48325, 96650, 193300, 199099, 398198, 796396, 995495, 1990990, 3981980, 4977475, 9954950, 19909900]

約数ペア:

[(1, 19909900), (2, 9954950), (4, 4977475), (5, 3981980), (10, 1990990), (20, 995495), (25, 796396), (50, 398198), (100, 199099), (103, 193300), (206, 96650), (412, 48325), (515, 38660), (1030, 19330), (1933, 10300), (2060, 9665), (2575, 7732), (3866, 5150)]