28870765

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 17577875

約数列:

[1, 5, 7, 11, 31, 35, 41, 55, 59, 77, 155, 205, 217, 287, 295, 341, 385, 413, 451, 649, 1085, 1271, 1435, 1705, 1829, 2065, 2255, 2387, 2419, 3157, 3245, 4543, 6355, 8897, 9145, 11935, 12095, 12803, 13981, 15785, 16933, 20119, 22715, 26609, 44485, 64015, 69905, 74989, 84665, 97867, 100595, 133045, 140833, 186263, 374945, 489335, 524923, 704165, 824879, 931315, 2624615, 4124395, 5774153, 28870765]

約数ペア:

[(1, 28870765), (5, 5774153), (7, 4124395), (11, 2624615), (31, 931315), (35, 824879), (41, 704165), (55, 524923), (59, 489335), (77, 374945), (155, 186263), (205, 140833), (217, 133045), (287, 100595), (295, 97867), (341, 84665), (385, 74989), (413, 69905), (451, 64015), (649, 44485), (1085, 26609), (1271, 22715), (1435, 20119), (1705, 16933), (1829, 15785), (2065, 13981), (2255, 12803), (2387, 12095), (2419, 11935), (3157, 9145), (3245, 8897), (4543, 6355)]