290745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 628992

約数和(自身を除く): 338247

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 71, 91, 105, 117, 195, 213, 273, 315, 355, 455, 497, 585, 639, 819, 923, 1065, 1365, 1491, 2485, 2769, 3195, 4095, 4473, 4615, 6461, 7455, 8307, 13845, 19383, 22365, 32305, 41535, 58149, 96915, 290745]

約数ペア:

[(1, 290745), (3, 96915), (5, 58149), (7, 41535), (9, 32305), (13, 22365), (15, 19383), (21, 13845), (35, 8307), (39, 7455), (45, 6461), (63, 4615), (65, 4473), (71, 4095), (91, 3195), (105, 2769), (117, 2485), (195, 1491), (213, 1365), (273, 1065), (315, 923), (355, 819), (455, 639), (497, 585)]