20727520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11777}}^1$

素因数の和:11803

約数の個数: 48

約数和(自身を含む): 53425008

約数和(自身を除く): 32697488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11777, 23554, 47108, 58885, 94216, 117770, 129547, 188432, 235540, 259094, 376864, 471080, 518188, 647735, 942160, 1036376, 1295470, 1884320, 2072752, 2590940, 4145504, 5181880, 10363760, 20727520]

約数ペア:

[(1, 20727520), (2, 10363760), (4, 5181880), (5, 4145504), (8, 2590940), (10, 2072752), (11, 1884320), (16, 1295470), (20, 1036376), (22, 942160), (32, 647735), (40, 518188), (44, 471080), (55, 376864), (80, 259094), (88, 235540), (110, 188432), (160, 129547), (176, 117770), (220, 94216), (352, 58885), (440, 47108), (880, 23554), (1760, 11777)]