19720812

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{929}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 48434400

約数和(自身を除く): 28713588

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 61, 87, 116, 122, 174, 183, 244, 348, 366, 732, 929, 1769, 1858, 2787, 3538, 3716, 5307, 5574, 7076, 10614, 11148, 21228, 26941, 53882, 56669, 80823, 107764, 113338, 161646, 170007, 226676, 323292, 340014, 680028, 1643401, 3286802, 4930203, 6573604, 9860406, 19720812]

約数ペア:

[(1, 19720812), (2, 9860406), (3, 6573604), (4, 4930203), (6, 3286802), (12, 1643401), (29, 680028), (58, 340014), (61, 323292), (87, 226676), (116, 170007), (122, 161646), (174, 113338), (183, 107764), (244, 80823), (348, 56669), (366, 53882), (732, 26941), (929, 21228), (1769, 11148), (1858, 10614), (2787, 7076), (3538, 5574), (3716, 5307)]