256666333

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 329598720

約数和(自身を除く): 72932387

約数列:

[1, 7, 11, 53, 77, 109, 371, 577, 583, 763, 1199, 4039, 4081, 5777, 6347, 8393, 30581, 40439, 44429, 62893, 63547, 214067, 336391, 440251, 444829, 691823, 2354737, 3333329, 4842761, 23333303, 36666619, 256666333]

約数ペア:

[(1, 256666333), (7, 36666619), (11, 23333303), (53, 4842761), (77, 3333329), (109, 2354737), (371, 691823), (577, 444829), (583, 440251), (763, 336391), (1199, 214067), (4039, 63547), (4081, 62893), (5777, 44429), (6347, 40439), (8393, 30581)]