1982920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 4519800

約数和(自身を除く): 2536880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 557, 712, 890, 1114, 1780, 2228, 2785, 3560, 4456, 5570, 11140, 22280, 49573, 99146, 198292, 247865, 396584, 495730, 991460, 1982920]

約数ペア:

[(1, 1982920), (2, 991460), (4, 495730), (5, 396584), (8, 247865), (10, 198292), (20, 99146), (40, 49573), (89, 22280), (178, 11140), (356, 5570), (445, 4456), (557, 3560), (712, 2785), (890, 2228), (1114, 1780)]