20465604

素因数分解:

$2^2\times 3^2\times {\mathrm{431}}^1\times {\mathrm{1319}}^1$

素因数の和:1760

約数の個数: 36

約数和(自身を含む): 51891840

約数和(自身を除く): 31426236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 431, 862, 1293, 1319, 1724, 2586, 2638, 3879, 3957, 5172, 5276, 7758, 7914, 11871, 15516, 15828, 23742, 47484, 568489, 1136978, 1705467, 2273956, 3410934, 5116401, 6821868, 10232802, 20465604]

約数ペア:

[(1, 20465604), (2, 10232802), (3, 6821868), (4, 5116401), (6, 3410934), (9, 2273956), (12, 1705467), (18, 1136978), (36, 568489), (431, 47484), (862, 23742), (1293, 15828), (1319, 15516), (1724, 11871), (2586, 7914), (2638, 7758), (3879, 5276), (3957, 5172)]