28538325

素因数分解:

$3^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{829}}^1$

素因数の和:868

約数の個数: 60

約数和(自身を含む): 56039940

約数和(自身を除く): 27501615

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 255, 405, 425, 459, 675, 765, 829, 1275, 1377, 2025, 2295, 2487, 3825, 4145, 6885, 7461, 11475, 12435, 14093, 20725, 22383, 34425, 37305, 42279, 62175, 67149, 70465, 111915, 126837, 186525, 211395, 335745, 352325, 380511, 559575, 634185, 1056975, 1141533, 1678725, 1902555, 3170925, 5707665, 9512775, 28538325]

約数ペア:

[(1, 28538325), (3, 9512775), (5, 5707665), (9, 3170925), (15, 1902555), (17, 1678725), (25, 1141533), (27, 1056975), (45, 634185), (51, 559575), (75, 380511), (81, 352325), (85, 335745), (135, 211395), (153, 186525), (225, 126837), (255, 111915), (405, 70465), (425, 67149), (459, 62175), (675, 42279), (765, 37305), (829, 34425), (1275, 22383), (1377, 20725), (2025, 14093), (2295, 12435), (2487, 11475), (3825, 7461), (4145, 6885)]