81687960

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1759}}^1$

素因数の和:1822

約数の個数: 128

約数和(自身を含む): 278784000

約数和(自身を除く): 197096040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 43, 45, 54, 60, 72, 86, 90, 108, 120, 129, 135, 172, 180, 215, 216, 258, 270, 344, 360, 387, 430, 516, 540, 645, 774, 860, 1032, 1080, 1161, 1290, 1548, 1720, 1759, 1935, 2322, 2580, 3096, 3518, 3870, 4644, 5160, 5277, 5805, 7036, 7740, 8795, 9288, 10554, 11610, 14072, 15480, 15831, 17590, 21108, 23220, 26385, 31662, 35180, 42216, 46440, 47493, 52770, 63324, 70360, 75637, 79155, 94986, 105540, 126648, 151274, 158310, 189972, 211080, 226911, 237465, 302548, 316620, 378185, 379944, 453822, 474930, 605096, 633240, 680733, 756370, 907644, 949860, 1134555, 1361466, 1512740, 1815288, 1899720, 2042199, 2269110, 2722932, 3025480, 3403665, 4084398, 4538220, 5445864, 6807330, 8168796, 9076440, 10210995, 13614660, 16337592, 20421990, 27229320, 40843980, 81687960]

約数ペア:

[(1, 81687960), (2, 40843980), (3, 27229320), (4, 20421990), (5, 16337592), (6, 13614660), (8, 10210995), (9, 9076440), (10, 8168796), (12, 6807330), (15, 5445864), (18, 4538220), (20, 4084398), (24, 3403665), (27, 3025480), (30, 2722932), (36, 2269110), (40, 2042199), (43, 1899720), (45, 1815288), (54, 1512740), (60, 1361466), (72, 1134555), (86, 949860), (90, 907644), (108, 756370), (120, 680733), (129, 633240), (135, 605096), (172, 474930), (180, 453822), (215, 379944), (216, 378185), (258, 316620), (270, 302548), (344, 237465), (360, 226911), (387, 211080), (430, 189972), (516, 158310), (540, 151274), (645, 126648), (774, 105540), (860, 94986), (1032, 79155), (1080, 75637), (1161, 70360), (1290, 63324), (1548, 52770), (1720, 47493), (1759, 46440), (1935, 42216), (2322, 35180), (2580, 31662), (3096, 26385), (3518, 23220), (3870, 21108), (4644, 17590), (5160, 15831), (5277, 15480), (5805, 14072), (7036, 11610), (7740, 10554), (8795, 9288)]