19776400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{1009}}^1$

素因数の和:1041

約数の個数: 90

約数和(自身を含む): 55324770

約数和(自身を除く): 35548370

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1009, 1225, 1400, 1960, 2018, 2450, 2800, 3920, 4036, 4900, 5045, 7063, 8072, 9800, 10090, 14126, 16144, 19600, 20180, 25225, 28252, 35315, 40360, 49441, 50450, 56504, 70630, 80720, 98882, 100900, 113008, 141260, 176575, 197764, 201800, 247205, 282520, 353150, 395528, 403600, 494410, 565040, 706300, 791056, 988820, 1236025, 1412600, 1977640, 2472050, 2825200, 3955280, 4944100, 9888200, 19776400]

約数ペア:

[(1, 19776400), (2, 9888200), (4, 4944100), (5, 3955280), (7, 2825200), (8, 2472050), (10, 1977640), (14, 1412600), (16, 1236025), (20, 988820), (25, 791056), (28, 706300), (35, 565040), (40, 494410), (49, 403600), (50, 395528), (56, 353150), (70, 282520), (80, 247205), (98, 201800), (100, 197764), (112, 176575), (140, 141260), (175, 113008), (196, 100900), (200, 98882), (245, 80720), (280, 70630), (350, 56504), (392, 50450), (400, 49441), (490, 40360), (560, 35315), (700, 28252), (784, 25225), (980, 20180), (1009, 19600), (1225, 16144), (1400, 14126), (1960, 10090), (2018, 9800), (2450, 8072), (2800, 7063), (3920, 5045), (4036, 4900)]