81648720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{751}}^1$

素因数の和:921

約数の個数: 120

約数和(自身を含む): 276387072

約数和(自身を除く): 194738352

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 151, 180, 240, 302, 360, 453, 604, 720, 751, 755, 906, 1208, 1359, 1502, 1510, 1812, 2253, 2265, 2416, 2718, 3004, 3020, 3624, 3755, 4506, 4530, 5436, 6008, 6040, 6759, 6795, 7248, 7510, 9012, 9060, 10872, 11265, 12016, 12080, 13518, 13590, 15020, 18024, 18120, 21744, 22530, 27036, 27180, 30040, 33795, 36048, 36240, 45060, 54072, 54360, 60080, 67590, 90120, 108144, 108720, 113401, 135180, 180240, 226802, 270360, 340203, 453604, 540720, 567005, 680406, 907208, 1020609, 1134010, 1360812, 1701015, 1814416, 2041218, 2268020, 2721624, 3402030, 4082436, 4536040, 5103045, 5443248, 6804060, 8164872, 9072080, 10206090, 13608120, 16329744, 20412180, 27216240, 40824360, 81648720]

約数ペア:

[(1, 81648720), (2, 40824360), (3, 27216240), (4, 20412180), (5, 16329744), (6, 13608120), (8, 10206090), (9, 9072080), (10, 8164872), (12, 6804060), (15, 5443248), (16, 5103045), (18, 4536040), (20, 4082436), (24, 3402030), (30, 2721624), (36, 2268020), (40, 2041218), (45, 1814416), (48, 1701015), (60, 1360812), (72, 1134010), (80, 1020609), (90, 907208), (120, 680406), (144, 567005), (151, 540720), (180, 453604), (240, 340203), (302, 270360), (360, 226802), (453, 180240), (604, 135180), (720, 113401), (751, 108720), (755, 108144), (906, 90120), (1208, 67590), (1359, 60080), (1502, 54360), (1510, 54072), (1812, 45060), (2253, 36240), (2265, 36048), (2416, 33795), (2718, 30040), (3004, 27180), (3020, 27036), (3624, 22530), (3755, 21744), (4506, 18120), (4530, 18024), (5436, 15020), (6008, 13590), (6040, 13518), (6759, 12080), (6795, 12016), (7248, 11265), (7510, 10872), (9012, 9060)]