51491860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1867}}^1$

素因数の和:2080

約数の個数: 48

約数和(自身を含む): 124274304

約数和(自身を除く): 72782444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1867, 1970, 2758, 3734, 3940, 5516, 6895, 7468, 9335, 13069, 13790, 18670, 26138, 27580, 37340, 52276, 65345, 130690, 261380, 367799, 735598, 1471196, 1838995, 2574593, 3677990, 5149186, 7355980, 10298372, 12872965, 25745930, 51491860]

約数ペア:

[(1, 51491860), (2, 25745930), (4, 12872965), (5, 10298372), (7, 7355980), (10, 5149186), (14, 3677990), (20, 2574593), (28, 1838995), (35, 1471196), (70, 735598), (140, 367799), (197, 261380), (394, 130690), (788, 65345), (985, 52276), (1379, 37340), (1867, 27580), (1970, 26138), (2758, 18670), (3734, 13790), (3940, 13069), (5516, 9335), (6895, 7468)]