20201556

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 48875904

約数和(自身を除く): 28674348

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 173, 222, 263, 346, 444, 519, 526, 692, 789, 1038, 1052, 1578, 2076, 3156, 6401, 9731, 12802, 19203, 19462, 25604, 29193, 38406, 38924, 45499, 58386, 76812, 90998, 116772, 136497, 181996, 272994, 545988, 1683463, 3366926, 5050389, 6733852, 10100778, 20201556]

約数ペア:

[(1, 20201556), (2, 10100778), (3, 6733852), (4, 5050389), (6, 3366926), (12, 1683463), (37, 545988), (74, 272994), (111, 181996), (148, 136497), (173, 116772), (222, 90998), (263, 76812), (346, 58386), (444, 45499), (519, 38924), (526, 38406), (692, 29193), (789, 25604), (1038, 19462), (1052, 19203), (1578, 12802), (2076, 9731), (3156, 6401)]