28255356

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 76112400

約数和(自身を除く): 47857044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 101, 114, 171, 202, 228, 303, 342, 404, 409, 606, 684, 818, 909, 1212, 1227, 1636, 1818, 1919, 2454, 3636, 3681, 3838, 4908, 5757, 7362, 7676, 7771, 11514, 14724, 15542, 17271, 23028, 23313, 31084, 34542, 41309, 46626, 69084, 69939, 82618, 93252, 123927, 139878, 165236, 247854, 279756, 371781, 495708, 743562, 784871, 1487124, 1569742, 2354613, 3139484, 4709226, 7063839, 9418452, 14127678, 28255356]

約数ペア:

[(1, 28255356), (2, 14127678), (3, 9418452), (4, 7063839), (6, 4709226), (9, 3139484), (12, 2354613), (18, 1569742), (19, 1487124), (36, 784871), (38, 743562), (57, 495708), (76, 371781), (101, 279756), (114, 247854), (171, 165236), (202, 139878), (228, 123927), (303, 93252), (342, 82618), (404, 69939), (409, 69084), (606, 46626), (684, 41309), (818, 34542), (909, 31084), (1212, 23313), (1227, 23028), (1636, 17271), (1818, 15542), (1919, 14724), (2454, 11514), (3636, 7771), (3681, 7676), (3838, 7362), (4908, 5757)]