31131180

素因数分解:

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

素因数の和:1895

約数の個数: 72

約数和(自身を含む): 95458272

約数和(自身を除く): 64327092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1746, 1783, 1940, 2910, 3492, 3566, 4365, 5349, 5820, 7132, 8730, 8915, 10698, 16047, 17460, 17830, 21396, 26745, 32094, 35660, 53490, 64188, 80235, 106980, 160470, 172951, 320940, 345902, 518853, 691804, 864755, 1037706, 1556559, 1729510, 2075412, 2594265, 3113118, 3459020, 5188530, 6226236, 7782795, 10377060, 15565590, 31131180]

約数ペア:

[(1, 31131180), (2, 15565590), (3, 10377060), (4, 7782795), (5, 6226236), (6, 5188530), (9, 3459020), (10, 3113118), (12, 2594265), (15, 2075412), (18, 1729510), (20, 1556559), (30, 1037706), (36, 864755), (45, 691804), (60, 518853), (90, 345902), (97, 320940), (180, 172951), (194, 160470), (291, 106980), (388, 80235), (485, 64188), (582, 53490), (873, 35660), (970, 32094), (1164, 26745), (1455, 21396), (1746, 17830), (1783, 17460), (1940, 16047), (2910, 10698), (3492, 8915), (3566, 8730), (4365, 7132), (5349, 5820)]