20264545

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1045

約数の個数: 32

約数和(自身を含む): 30228480

約数和(自身を除く): 9963935

約数列:

[1, 5, 7, 19, 31, 35, 95, 133, 155, 217, 589, 665, 983, 1085, 2945, 4123, 4915, 6881, 18677, 20615, 30473, 34405, 93385, 130739, 152365, 213311, 578987, 653695, 1066555, 2894935, 4052909, 20264545]

約数ペア:

[(1, 20264545), (5, 4052909), (7, 2894935), (19, 1066555), (31, 653695), (35, 578987), (95, 213311), (133, 152365), (155, 130739), (217, 93385), (589, 34405), (665, 30473), (983, 20615), (1085, 18677), (2945, 6881), (4123, 4915)]