20408518845

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{288317}}^1$

素因数の和:288363

約数の個数: 72

約数和(自身を含む): 41874153048

約数和(自身を除く): 21465634203

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 121, 143, 165, 195, 363, 429, 495, 585, 605, 715, 1089, 1287, 1573, 1815, 2145, 4719, 5445, 6435, 7865, 14157, 23595, 70785, 288317, 864951, 1441585, 2594853, 3171487, 3748121, 4324755, 9514461, 11244363, 12974265, 15857435, 18740605, 28543383, 33733089, 34886357, 41229331, 47572305, 56221815, 104659071, 123687993, 142716915, 168665445, 174431785, 206146655, 313977213, 371063979, 453522641, 523295355, 618439965, 1360567923, 1569886065, 1855319895, 2267613205, 4081703769, 6802839615, 20408518845]

約数ペア:

[(1, 20408518845), (3, 6802839615), (5, 4081703769), (9, 2267613205), (11, 1855319895), (13, 1569886065), (15, 1360567923), (33, 618439965), (39, 523295355), (45, 453522641), (55, 371063979), (65, 313977213), (99, 206146655), (117, 174431785), (121, 168665445), (143, 142716915), (165, 123687993), (195, 104659071), (363, 56221815), (429, 47572305), (495, 41229331), (585, 34886357), (605, 33733089), (715, 28543383), (1089, 18740605), (1287, 15857435), (1573, 12974265), (1815, 11244363), (2145, 9514461), (4719, 4324755), (5445, 3748121), (6435, 3171487), (7865, 2594853), (14157, 1441585), (23595, 864951), (70785, 288317)]