28237815

素因数分解:

$3^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:211

約数の個数: 56

約数和(自身を含む): 52044288

約数和(自身を除く): 23806473

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 127, 135, 183, 243, 305, 381, 405, 549, 635, 729, 915, 1143, 1215, 1647, 1905, 2745, 3429, 3645, 4941, 5715, 7747, 8235, 10287, 14823, 17145, 23241, 24705, 30861, 38735, 44469, 51435, 69723, 74115, 92583, 116205, 154305, 209169, 222345, 348615, 462915, 627507, 1045845, 1882521, 3137535, 5647563, 9412605, 28237815]

約数ペア:

[(1, 28237815), (3, 9412605), (5, 5647563), (9, 3137535), (15, 1882521), (27, 1045845), (45, 627507), (61, 462915), (81, 348615), (127, 222345), (135, 209169), (183, 154305), (243, 116205), (305, 92583), (381, 74115), (405, 69723), (549, 51435), (635, 44469), (729, 38735), (915, 30861), (1143, 24705), (1215, 23241), (1647, 17145), (1905, 14823), (2745, 10287), (3429, 8235), (3645, 7747), (4941, 5715)]