20463040

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4919}}^1$

素因数の和:4949

約数の個数: 56

約数和(自身を含む): 52486560

約数和(自身を除く): 32023520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4919, 9838, 19676, 24595, 39352, 49190, 63947, 78704, 98380, 127894, 157408, 196760, 255788, 314816, 319735, 393520, 511576, 639470, 787040, 1023152, 1278940, 1574080, 2046304, 2557880, 4092608, 5115760, 10231520, 20463040]

約数ペア:

[(1, 20463040), (2, 10231520), (4, 5115760), (5, 4092608), (8, 2557880), (10, 2046304), (13, 1574080), (16, 1278940), (20, 1023152), (26, 787040), (32, 639470), (40, 511576), (52, 393520), (64, 319735), (65, 314816), (80, 255788), (104, 196760), (130, 157408), (160, 127894), (208, 98380), (260, 78704), (320, 63947), (416, 49190), (520, 39352), (832, 24595), (1040, 19676), (2080, 9838), (4160, 4919)]