81661680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3911}}^1$

素因数の和:3959

約数の個数: 120

約数和(自身を含む): 283776480

約数和(自身を除く): 202114800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 116, 120, 144, 145, 174, 180, 232, 240, 261, 290, 348, 360, 435, 464, 522, 580, 696, 720, 870, 1044, 1160, 1305, 1392, 1740, 2088, 2320, 2610, 3480, 3911, 4176, 5220, 6960, 7822, 10440, 11733, 15644, 19555, 20880, 23466, 31288, 35199, 39110, 46932, 58665, 62576, 70398, 78220, 93864, 113419, 117330, 140796, 156440, 175995, 187728, 226838, 234660, 281592, 312880, 340257, 351990, 453676, 469320, 563184, 567095, 680514, 703980, 907352, 938640, 1020771, 1134190, 1361028, 1407960, 1701285, 1814704, 2041542, 2268380, 2722056, 2815920, 3402570, 4083084, 4536760, 5103855, 5444112, 6805140, 8166168, 9073520, 10207710, 13610280, 16332336, 20415420, 27220560, 40830840, 81661680]

約数ペア:

[(1, 81661680), (2, 40830840), (3, 27220560), (4, 20415420), (5, 16332336), (6, 13610280), (8, 10207710), (9, 9073520), (10, 8166168), (12, 6805140), (15, 5444112), (16, 5103855), (18, 4536760), (20, 4083084), (24, 3402570), (29, 2815920), (30, 2722056), (36, 2268380), (40, 2041542), (45, 1814704), (48, 1701285), (58, 1407960), (60, 1361028), (72, 1134190), (80, 1020771), (87, 938640), (90, 907352), (116, 703980), (120, 680514), (144, 567095), (145, 563184), (174, 469320), (180, 453676), (232, 351990), (240, 340257), (261, 312880), (290, 281592), (348, 234660), (360, 226838), (435, 187728), (464, 175995), (522, 156440), (580, 140796), (696, 117330), (720, 113419), (870, 93864), (1044, 78220), (1160, 70398), (1305, 62576), (1392, 58665), (1740, 46932), (2088, 39110), (2320, 35199), (2610, 31288), (3480, 23466), (3911, 20880), (4176, 19555), (5220, 15644), (6960, 11733), (7822, 10440)]