20754120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1783}}^1$

素因数の和:1894

約数の個数: 64

約数和(自身を含む): 62939520

約数和(自身を除く): 42185400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1783, 1940, 2328, 2910, 3566, 3880, 5349, 5820, 7132, 8915, 10698, 11640, 14264, 17830, 21396, 26745, 35660, 42792, 53490, 71320, 106980, 172951, 213960, 345902, 518853, 691804, 864755, 1037706, 1383608, 1729510, 2075412, 2594265, 3459020, 4150824, 5188530, 6918040, 10377060, 20754120]

約数ペア:

[(1, 20754120), (2, 10377060), (3, 6918040), (4, 5188530), (5, 4150824), (6, 3459020), (8, 2594265), (10, 2075412), (12, 1729510), (15, 1383608), (20, 1037706), (24, 864755), (30, 691804), (40, 518853), (60, 345902), (97, 213960), (120, 172951), (194, 106980), (291, 71320), (388, 53490), (485, 42792), (582, 35660), (776, 26745), (970, 21396), (1164, 17830), (1455, 14264), (1783, 11640), (1940, 10698), (2328, 8915), (2910, 7132), (3566, 5820), (3880, 5349)]