179804980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{1759}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 399168000

約数和(自身を除く): 219363020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 269, 380, 538, 1076, 1345, 1759, 2690, 3518, 5111, 5380, 7036, 8795, 10222, 17590, 20444, 25555, 33421, 35180, 51110, 66842, 102220, 133684, 167105, 334210, 473171, 668420, 946342, 1892684, 2365855, 4731710, 8990249, 9463420, 17980498, 35960996, 44951245, 89902490, 179804980]

約数ペア:

[(1, 179804980), (2, 89902490), (4, 44951245), (5, 35960996), (10, 17980498), (19, 9463420), (20, 8990249), (38, 4731710), (76, 2365855), (95, 1892684), (190, 946342), (269, 668420), (380, 473171), (538, 334210), (1076, 167105), (1345, 133684), (1759, 102220), (2690, 66842), (3518, 51110), (5111, 35180), (5380, 33421), (7036, 25555), (8795, 20444), (10222, 17590)]