1728103640

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{77563}}^1$

素因数の和:78131

約数の個数: 32

約数和(自身を含む): 3895264080

約数和(自身を除く): 2167160440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 4456, 5570, 11140, 22280, 77563, 155126, 310252, 387815, 620504, 775630, 1551260, 3102520, 43202591, 86405182, 172810364, 216012955, 345620728, 432025910, 864051820, 1728103640]

約数ペア:

[(1, 1728103640), (2, 864051820), (4, 432025910), (5, 345620728), (8, 216012955), (10, 172810364), (20, 86405182), (40, 43202591), (557, 3102520), (1114, 1551260), (2228, 775630), (2785, 620504), (4456, 387815), (5570, 310252), (11140, 155126), (22280, 77563)]