66642280

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{12161}}^1$

素因数の和:12309

約数の個数: 32

約数和(自身を含む): 151052040

約数和(自身を除く): 84409760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 12161, 24322, 48644, 60805, 97288, 121610, 243220, 486440, 1666057, 3332114, 6664228, 8330285, 13328456, 16660570, 33321140, 66642280]

約数ペア:

[(1, 66642280), (2, 33321140), (4, 16660570), (5, 13328456), (8, 8330285), (10, 6664228), (20, 3332114), (40, 1666057), (137, 486440), (274, 243220), (548, 121610), (685, 97288), (1096, 60805), (1370, 48644), (2740, 24322), (5480, 12161)]