19790080

素因数分解:

$2^8\times 5^1\times {\mathrm{15461}}^1$

素因数の和:15482

約数の個数: 36

約数和(自身を含む): 47406492

約数和(自身を除く): 27616412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15461, 30922, 61844, 77305, 123688, 154610, 247376, 309220, 494752, 618440, 989504, 1236880, 1979008, 2473760, 3958016, 4947520, 9895040, 19790080]

約数ペア:

[(1, 19790080), (2, 9895040), (4, 4947520), (5, 3958016), (8, 2473760), (10, 1979008), (16, 1236880), (20, 989504), (32, 618440), (40, 494752), (64, 309220), (80, 247376), (128, 154610), (160, 123688), (256, 77305), (320, 61844), (640, 30922), (1280, 15461)]