28254880

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1289}}^1$

素因数の和:1441

約数の個数: 48

約数和(自身を含む): 67291560

約数和(自身を除く): 39036680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 1096, 1289, 1370, 2192, 2578, 2740, 4384, 5156, 5480, 6445, 10312, 10960, 12890, 20624, 21920, 25780, 41248, 51560, 103120, 176593, 206240, 353186, 706372, 882965, 1412744, 1765930, 2825488, 3531860, 5650976, 7063720, 14127440, 28254880]

約数ペア:

[(1, 28254880), (2, 14127440), (4, 7063720), (5, 5650976), (8, 3531860), (10, 2825488), (16, 1765930), (20, 1412744), (32, 882965), (40, 706372), (80, 353186), (137, 206240), (160, 176593), (274, 103120), (548, 51560), (685, 41248), (1096, 25780), (1289, 21920), (1370, 20624), (2192, 12890), (2578, 10960), (2740, 10312), (4384, 6445), (5156, 5480)]