81660420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1559}}^1$

素因数の和:1674

約数の個数: 96

約数和(自身を含む): 256838400

約数和(自身を除く): 175177980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 97, 108, 135, 180, 194, 270, 291, 388, 485, 540, 582, 873, 970, 1164, 1455, 1559, 1746, 1940, 2619, 2910, 3118, 3492, 4365, 4677, 5238, 5820, 6236, 7795, 8730, 9354, 10476, 13095, 14031, 15590, 17460, 18708, 23385, 26190, 28062, 31180, 42093, 46770, 52380, 56124, 70155, 84186, 93540, 140310, 151223, 168372, 210465, 280620, 302446, 420930, 453669, 604892, 756115, 841860, 907338, 1361007, 1512230, 1814676, 2268345, 2722014, 3024460, 4083021, 4536690, 5444028, 6805035, 8166042, 9073380, 13610070, 16332084, 20415105, 27220140, 40830210, 81660420]

約数ペア:

[(1, 81660420), (2, 40830210), (3, 27220140), (4, 20415105), (5, 16332084), (6, 13610070), (9, 9073380), (10, 8166042), (12, 6805035), (15, 5444028), (18, 4536690), (20, 4083021), (27, 3024460), (30, 2722014), (36, 2268345), (45, 1814676), (54, 1512230), (60, 1361007), (90, 907338), (97, 841860), (108, 756115), (135, 604892), (180, 453669), (194, 420930), (270, 302446), (291, 280620), (388, 210465), (485, 168372), (540, 151223), (582, 140310), (873, 93540), (970, 84186), (1164, 70155), (1455, 56124), (1559, 52380), (1746, 46770), (1940, 42093), (2619, 31180), (2910, 28062), (3118, 26190), (3492, 23385), (4365, 18708), (4677, 17460), (5238, 15590), (5820, 14031), (6236, 13095), (7795, 10476), (8730, 9354)]