19822120

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1789}}^1$

素因数の和:2077

約数の個数: 32

約数和(自身を含む): 44785800

約数和(自身を除く): 24963680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 1789, 2216, 2770, 3578, 5540, 7156, 8945, 11080, 14312, 17890, 35780, 71560, 495553, 991106, 1982212, 2477765, 3964424, 4955530, 9911060, 19822120]

約数ペア:

[(1, 19822120), (2, 9911060), (4, 4955530), (5, 3964424), (8, 2477765), (10, 1982212), (20, 991106), (40, 495553), (277, 71560), (554, 35780), (1108, 17890), (1385, 14312), (1789, 11080), (2216, 8945), (2770, 7156), (3578, 5540)]