90635909

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 122895360

約数和(自身を除く): 32259451

約数列:

[1, 7, 13, 19, 31, 89, 91, 133, 217, 247, 361, 403, 589, 623, 1157, 1691, 1729, 2527, 2759, 2821, 4123, 4693, 7657, 8099, 11191, 11837, 19313, 21983, 32129, 32851, 35867, 52421, 53599, 78337, 145483, 153881, 224903, 251069, 366947, 417677, 681473, 995999, 1018381, 2923739, 4770311, 6971993, 12947987, 90635909]

約数ペア:

[(1, 90635909), (7, 12947987), (13, 6971993), (19, 4770311), (31, 2923739), (89, 1018381), (91, 995999), (133, 681473), (217, 417677), (247, 366947), (361, 251069), (403, 224903), (589, 153881), (623, 145483), (1157, 78337), (1691, 53599), (1729, 52421), (2527, 35867), (2759, 32851), (2821, 32129), (4123, 21983), (4693, 19313), (7657, 11837), (8099, 11191)]