39815140

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1973}}^1$

素因数の和:2991

約数の個数: 24

約数和(自身を含む): 83737080

約数和(自身を除く): 43921940

約数列:

[1, 2, 4, 5, 10, 20, 1009, 1973, 2018, 3946, 4036, 5045, 7892, 9865, 10090, 19730, 20180, 39460, 1990757, 3981514, 7963028, 9953785, 19907570, 39815140]

約数ペア:

[(1, 39815140), (2, 19907570), (4, 9953785), (5, 7963028), (10, 3981514), (20, 1990757), (1009, 39460), (1973, 20180), (2018, 19730), (3946, 10090), (4036, 9865), (5045, 7892)]