21456416880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{449}}^1\times {\mathrm{2141}}^1$

素因数の和:2640

約数の個数: 240

約数和(自身を含む): 74582726400

約数和(自身を除く): 53126309520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 449, 465, 496, 558, 620, 720, 744, 898, 930, 1116, 1240, 1347, 1395, 1488, 1796, 1860, 2141, 2232, 2245, 2480, 2694, 2790, 3592, 3720, 4041, 4282, 4464, 4490, 5388, 5580, 6423, 6735, 7184, 7440, 8082, 8564, 8980, 10705, 10776, 11160, 12846, 13470, 13919, 16164, 17128, 17960, 19269, 20205, 21410, 21552, 22320, 25692, 26940, 27838, 32115, 32328, 34256, 35920, 38538, 40410, 41757, 42820, 51384, 53880, 55676, 64230, 64656, 66371, 69595, 77076, 80820, 83514, 85640, 96345, 102768, 107760, 111352, 125271, 128460, 132742, 139190, 154152, 161640, 167028, 171280, 192690, 199113, 208785, 222704, 250542, 256920, 265484, 278380, 308304, 323280, 331855, 334056, 385380, 398226, 417570, 501084, 513840, 530968, 556760, 597339, 626355, 663710, 668112, 770760, 796452, 835140, 961309, 995565, 1002168, 1061936, 1113520, 1194678, 1252710, 1327420, 1541520, 1592904, 1670280, 1922618, 1991130, 2004336, 2389356, 2505420, 2654840, 2883927, 2986695, 3185808, 3340560, 3845236, 3982260, 4778712, 4806545, 5010840, 5309680, 5767854, 5973390, 7690472, 7964520, 8651781, 9557424, 9613090, 10021680, 11535708, 11946780, 14419635, 15380944, 15929040, 17303562, 19226180, 23071416, 23893560, 28839270, 29800579, 34607124, 38452360, 43258905, 46142832, 47787120, 57678540, 59601158, 69214248, 76904720, 86517810, 89401737, 115357080, 119202316, 138428496, 149002895, 173035620, 178803474, 230714160, 238404632, 268205211, 298005790, 346071240, 357606948, 447008685, 476809264, 536410422, 596011580, 692142480, 715213896, 894017370, 1072820844, 1192023160, 1341026055, 1430427792, 1788034740, 2145641688, 2384046320, 2682052110, 3576069480, 4291283376, 5364104220, 7152138960, 10728208440, 21456416880]

約数ペア:

[(1, 21456416880), (2, 10728208440), (3, 7152138960), (4, 5364104220), (5, 4291283376), (6, 3576069480), (8, 2682052110), (9, 2384046320), (10, 2145641688), (12, 1788034740), (15, 1430427792), (16, 1341026055), (18, 1192023160), (20, 1072820844), (24, 894017370), (30, 715213896), (31, 692142480), (36, 596011580), (40, 536410422), (45, 476809264), (48, 447008685), (60, 357606948), (62, 346071240), (72, 298005790), (80, 268205211), (90, 238404632), (93, 230714160), (120, 178803474), (124, 173035620), (144, 149002895), (155, 138428496), (180, 119202316), (186, 115357080), (240, 89401737), (248, 86517810), (279, 76904720), (310, 69214248), (360, 59601158), (372, 57678540), (449, 47787120), (465, 46142832), (496, 43258905), (558, 38452360), (620, 34607124), (720, 29800579), (744, 28839270), (898, 23893560), (930, 23071416), (1116, 19226180), (1240, 17303562), (1347, 15929040), (1395, 15380944), (1488, 14419635), (1796, 11946780), (1860, 11535708), (2141, 10021680), (2232, 9613090), (2245, 9557424), (2480, 8651781), (2694, 7964520), (2790, 7690472), (3592, 5973390), (3720, 5767854), (4041, 5309680), (4282, 5010840), (4464, 4806545), (4490, 4778712), (5388, 3982260), (5580, 3845236), (6423, 3340560), (6735, 3185808), (7184, 2986695), (7440, 2883927), (8082, 2654840), (8564, 2505420), (8980, 2389356), (10705, 2004336), (10776, 1991130), (11160, 1922618), (12846, 1670280), (13470, 1592904), (13919, 1541520), (16164, 1327420), (17128, 1252710), (17960, 1194678), (19269, 1113520), (20205, 1061936), (21410, 1002168), (21552, 995565), (22320, 961309), (25692, 835140), (26940, 796452), (27838, 770760), (32115, 668112), (32328, 663710), (34256, 626355), (35920, 597339), (38538, 556760), (40410, 530968), (41757, 513840), (42820, 501084), (51384, 417570), (53880, 398226), (55676, 385380), (64230, 334056), (64656, 331855), (66371, 323280), (69595, 308304), (77076, 278380), (80820, 265484), (83514, 256920), (85640, 250542), (96345, 222704), (102768, 208785), (107760, 199113), (111352, 192690), (125271, 171280), (128460, 167028), (132742, 161640), (139190, 154152)]