20744625

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 38817792

約数和(自身を除く): 18073167

約数列:

[1, 3, 5, 11, 15, 25, 33, 47, 55, 75, 107, 125, 141, 165, 235, 275, 321, 375, 517, 535, 705, 825, 1175, 1177, 1375, 1551, 1605, 2585, 2675, 3525, 3531, 4125, 5029, 5875, 5885, 7755, 8025, 12925, 13375, 15087, 17625, 17655, 25145, 29425, 38775, 40125, 55319, 64625, 75435, 88275, 125725, 147125, 165957, 193875, 276595, 377175, 441375, 628625, 829785, 1382975, 1885875, 4148925, 6914875, 20744625]

約数ペア:

[(1, 20744625), (3, 6914875), (5, 4148925), (11, 1885875), (15, 1382975), (25, 829785), (33, 628625), (47, 441375), (55, 377175), (75, 276595), (107, 193875), (125, 165957), (141, 147125), (165, 125725), (235, 88275), (275, 75435), (321, 64625), (375, 55319), (517, 40125), (535, 38775), (705, 29425), (825, 25145), (1175, 17655), (1177, 17625), (1375, 15087), (1551, 13375), (1605, 12925), (2585, 8025), (2675, 7755), (3525, 5885), (3531, 5875), (4125, 5029)]