216918720

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:823

約数の個数: 168

約数和(自身を含む): 754044720

約数和(自身を除く): 537126000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 109, 120, 144, 160, 180, 192, 218, 240, 288, 320, 327, 360, 436, 480, 545, 576, 654, 691, 720, 872, 960, 981, 1090, 1308, 1382, 1440, 1635, 1744, 1962, 2073, 2180, 2616, 2764, 2880, 3270, 3455, 3488, 3924, 4146, 4360, 4905, 5232, 5528, 6219, 6540, 6910, 6976, 7848, 8292, 8720, 9810, 10365, 10464, 11056, 12438, 13080, 13820, 15696, 16584, 17440, 19620, 20730, 20928, 22112, 24876, 26160, 27640, 31095, 31392, 33168, 34880, 39240, 41460, 44224, 49752, 52320, 55280, 62190, 62784, 66336, 75319, 78480, 82920, 99504, 104640, 110560, 124380, 132672, 150638, 156960, 165840, 199008, 221120, 225957, 248760, 301276, 313920, 331680, 376595, 398016, 451914, 497520, 602552, 663360, 677871, 753190, 903828, 995040, 1129785, 1205104, 1355742, 1506380, 1807656, 1990080, 2259570, 2410208, 2711484, 3012760, 3389355, 3615312, 4519140, 4820416, 5422968, 6025520, 6778710, 7230624, 9038280, 10845936, 12051040, 13557420, 14461248, 18076560, 21691872, 24102080, 27114840, 36153120, 43383744, 54229680, 72306240, 108459360, 216918720]

約数ペア:

[(1, 216918720), (2, 108459360), (3, 72306240), (4, 54229680), (5, 43383744), (6, 36153120), (8, 27114840), (9, 24102080), (10, 21691872), (12, 18076560), (15, 14461248), (16, 13557420), (18, 12051040), (20, 10845936), (24, 9038280), (30, 7230624), (32, 6778710), (36, 6025520), (40, 5422968), (45, 4820416), (48, 4519140), (60, 3615312), (64, 3389355), (72, 3012760), (80, 2711484), (90, 2410208), (96, 2259570), (109, 1990080), (120, 1807656), (144, 1506380), (160, 1355742), (180, 1205104), (192, 1129785), (218, 995040), (240, 903828), (288, 753190), (320, 677871), (327, 663360), (360, 602552), (436, 497520), (480, 451914), (545, 398016), (576, 376595), (654, 331680), (691, 313920), (720, 301276), (872, 248760), (960, 225957), (981, 221120), (1090, 199008), (1308, 165840), (1382, 156960), (1440, 150638), (1635, 132672), (1744, 124380), (1962, 110560), (2073, 104640), (2180, 99504), (2616, 82920), (2764, 78480), (2880, 75319), (3270, 66336), (3455, 62784), (3488, 62190), (3924, 55280), (4146, 52320), (4360, 49752), (4905, 44224), (5232, 41460), (5528, 39240), (6219, 34880), (6540, 33168), (6910, 31392), (6976, 31095), (7848, 27640), (8292, 26160), (8720, 24876), (9810, 22112), (10365, 20928), (10464, 20730), (11056, 19620), (12438, 17440), (13080, 16584), (13820, 15696)]