20522080

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2729}}^1$

素因数の和:2791

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 29011040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 2729, 3760, 5458, 7520, 10916, 13645, 21832, 27290, 43664, 54580, 87328, 109160, 128263, 218320, 256526, 436640, 513052, 641315, 1026104, 1282630, 2052208, 2565260, 4104416, 5130520, 10261040, 20522080]

約数ペア:

[(1, 20522080), (2, 10261040), (4, 5130520), (5, 4104416), (8, 2565260), (10, 2052208), (16, 1282630), (20, 1026104), (32, 641315), (40, 513052), (47, 436640), (80, 256526), (94, 218320), (160, 128263), (188, 109160), (235, 87328), (376, 54580), (470, 43664), (752, 27290), (940, 21832), (1504, 13645), (1880, 10916), (2729, 7520), (3760, 5458)]