189994640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5021}}^1$

素因数の和:5088

約数の個数: 80

約数和(自身を含む): 493200576

約数和(自身を除く): 303205936

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2365, 3440, 3784, 4730, 5021, 7568, 9460, 10042, 18920, 20084, 25105, 37840, 40168, 50210, 55231, 80336, 100420, 110462, 200840, 215903, 220924, 276155, 401680, 431806, 441848, 552310, 863612, 883696, 1079515, 1104620, 1727224, 2159030, 2209240, 2374933, 3454448, 4318060, 4418480, 4749866, 8636120, 9499732, 11874665, 17272240, 18999464, 23749330, 37998928, 47498660, 94997320, 189994640]

約数ペア:

[(1, 189994640), (2, 94997320), (4, 47498660), (5, 37998928), (8, 23749330), (10, 18999464), (11, 17272240), (16, 11874665), (20, 9499732), (22, 8636120), (40, 4749866), (43, 4418480), (44, 4318060), (55, 3454448), (80, 2374933), (86, 2209240), (88, 2159030), (110, 1727224), (172, 1104620), (176, 1079515), (215, 883696), (220, 863612), (344, 552310), (430, 441848), (440, 431806), (473, 401680), (688, 276155), (860, 220924), (880, 215903), (946, 200840), (1720, 110462), (1892, 100420), (2365, 80336), (3440, 55231), (3784, 50210), (4730, 40168), (5021, 37840), (7568, 25105), (9460, 20084), (10042, 18920)]