20204820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{112249}}^1$

素因数の和:112264

約数の個数: 36

約数和(自身を含む): 61288500

約数和(自身を除く): 41083680

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 112249, 224498, 336747, 448996, 561245, 673494, 1010241, 1122490, 1346988, 1683735, 2020482, 2244980, 3367470, 4040964, 5051205, 6734940, 10102410, 20204820]

約数ペア:

[(1, 20204820), (2, 10102410), (3, 6734940), (4, 5051205), (5, 4040964), (6, 3367470), (9, 2244980), (10, 2020482), (12, 1683735), (15, 1346988), (18, 1122490), (20, 1010241), (30, 673494), (36, 561245), (45, 448996), (60, 336747), (90, 224498), (180, 112249)]