20578880

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9187}}^1$

素因数の和:9211

約数の個数: 56

約数和(自身を含む): 56010048

約数和(自身を除く): 35431168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9187, 18374, 36748, 45935, 64309, 73496, 91870, 128618, 146992, 183740, 257236, 293984, 321545, 367480, 514472, 587968, 643090, 734960, 1028944, 1286180, 1469920, 2057888, 2572360, 2939840, 4115776, 5144720, 10289440, 20578880]

約数ペア:

[(1, 20578880), (2, 10289440), (4, 5144720), (5, 4115776), (7, 2939840), (8, 2572360), (10, 2057888), (14, 1469920), (16, 1286180), (20, 1028944), (28, 734960), (32, 643090), (35, 587968), (40, 514472), (56, 367480), (64, 321545), (70, 293984), (80, 257236), (112, 183740), (140, 146992), (160, 128618), (224, 91870), (280, 73496), (320, 64309), (448, 45935), (560, 36748), (1120, 18374), (2240, 9187)]