64672220

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{23603}}^1$

素因数の和:23749

約数の個数: 24

約数和(自身を含む): 136808784

約数和(自身を除く): 72136564

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 23603, 47206, 94412, 118015, 236030, 472060, 3233611, 6467222, 12934444, 16168055, 32336110, 64672220]

約数ペア:

[(1, 64672220), (2, 32336110), (4, 16168055), (5, 12934444), (10, 6467222), (20, 3233611), (137, 472060), (274, 236030), (548, 118015), (685, 94412), (1370, 47206), (2740, 23603)]