20399764

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{619}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24597356

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 107, 154, 214, 308, 428, 619, 749, 1177, 1238, 1498, 2354, 2476, 2996, 4333, 4708, 6809, 8239, 8666, 13618, 16478, 17332, 27236, 32956, 47663, 66233, 95326, 132466, 190652, 264932, 463631, 728563, 927262, 1457126, 1854524, 2914252, 5099941, 10199882, 20399764]

約数ペア:

[(1, 20399764), (2, 10199882), (4, 5099941), (7, 2914252), (11, 1854524), (14, 1457126), (22, 927262), (28, 728563), (44, 463631), (77, 264932), (107, 190652), (154, 132466), (214, 95326), (308, 66233), (428, 47663), (619, 32956), (749, 27236), (1177, 17332), (1238, 16478), (1498, 13618), (2354, 8666), (2476, 8239), (2996, 6809), (4333, 4708)]