218299455

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2579}}^1$

素因数の和:2626

約数の個数: 80

約数和(自身を含む): 449539200

約数和(自身を除く): 231239745

約数列:

[1, 3, 5, 9, 11, 15, 19, 27, 33, 45, 55, 57, 81, 95, 99, 135, 165, 171, 209, 285, 297, 405, 495, 513, 627, 855, 891, 1045, 1485, 1539, 1881, 2565, 2579, 3135, 4455, 5643, 7695, 7737, 9405, 12895, 16929, 23211, 28215, 28369, 38685, 49001, 69633, 84645, 85107, 116055, 141845, 147003, 208899, 245005, 255321, 348165, 425535, 441009, 539011, 735015, 765963, 1044495, 1276605, 1323027, 1617033, 2205045, 2297889, 2695055, 3829815, 3969081, 4851099, 6615135, 8085165, 11489445, 14553297, 19845405, 24255495, 43659891, 72766485, 218299455]

約数ペア:

[(1, 218299455), (3, 72766485), (5, 43659891), (9, 24255495), (11, 19845405), (15, 14553297), (19, 11489445), (27, 8085165), (33, 6615135), (45, 4851099), (55, 3969081), (57, 3829815), (81, 2695055), (95, 2297889), (99, 2205045), (135, 1617033), (165, 1323027), (171, 1276605), (209, 1044495), (285, 765963), (297, 735015), (405, 539011), (495, 441009), (513, 425535), (627, 348165), (855, 255321), (891, 245005), (1045, 208899), (1485, 147003), (1539, 141845), (1881, 116055), (2565, 85107), (2579, 84645), (3135, 69633), (4455, 49001), (5643, 38685), (7695, 28369), (7737, 28215), (9405, 23211), (12895, 16929)]