28238440

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5153}}^1$

素因数の和:5301

約数の個数: 32

約数和(自身を含む): 64012680

約数和(自身を除く): 35774240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5153, 5480, 10306, 20612, 25765, 41224, 51530, 103060, 206120, 705961, 1411922, 2823844, 3529805, 5647688, 7059610, 14119220, 28238440]

約数ペア:

[(1, 28238440), (2, 14119220), (4, 7059610), (5, 5647688), (8, 3529805), (10, 2823844), (20, 1411922), (40, 705961), (137, 206120), (274, 103060), (548, 51530), (685, 41224), (1096, 25765), (1370, 20612), (2740, 10306), (5153, 5480)]