278364820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{5347}}^1$

素因数の和:5512

約数の個数: 48

約数和(自身を含む): 619940160

約数和(自身を除く): 341575340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 274, 380, 548, 685, 1370, 2603, 2740, 5206, 5347, 10412, 10694, 13015, 21388, 26030, 26735, 52060, 53470, 101593, 106940, 203186, 406372, 507965, 732539, 1015930, 1465078, 2031860, 2930156, 3662695, 7325390, 13918241, 14650780, 27836482, 55672964, 69591205, 139182410, 278364820]

約数ペア:

[(1, 278364820), (2, 139182410), (4, 69591205), (5, 55672964), (10, 27836482), (19, 14650780), (20, 13918241), (38, 7325390), (76, 3662695), (95, 2930156), (137, 2031860), (190, 1465078), (274, 1015930), (380, 732539), (548, 507965), (685, 406372), (1370, 203186), (2603, 106940), (2740, 101593), (5206, 53470), (5347, 52060), (10412, 26735), (10694, 26030), (13015, 21388)]