28727985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 26429775

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 59, 65, 143, 165, 177, 195, 227, 295, 429, 649, 681, 715, 767, 885, 1135, 1947, 2145, 2301, 2497, 2951, 3245, 3405, 3835, 7491, 8437, 8853, 9735, 11505, 12485, 13393, 14755, 25311, 32461, 37455, 40179, 42185, 44265, 66965, 97383, 126555, 147323, 162305, 174109, 200895, 441969, 486915, 522327, 736615, 870545, 1915199, 2209845, 2611635, 5745597, 9575995, 28727985]

約数ペア:

[(1, 28727985), (3, 9575995), (5, 5745597), (11, 2611635), (13, 2209845), (15, 1915199), (33, 870545), (39, 736615), (55, 522327), (59, 486915), (65, 441969), (143, 200895), (165, 174109), (177, 162305), (195, 147323), (227, 126555), (295, 97383), (429, 66965), (649, 44265), (681, 42185), (715, 40179), (767, 37455), (885, 32461), (1135, 25311), (1947, 14755), (2145, 13393), (2301, 12485), (2497, 11505), (2951, 9735), (3245, 8853), (3405, 8437), (3835, 7491)]