2181918384

素因数分解:

$2^4\times 3^5\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:518

約数の個数: 240

約数和(自身を含む): 6704681984

約数和(自身を除く): 4522763600

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 36, 43, 48, 54, 62, 72, 81, 86, 93, 108, 124, 129, 144, 162, 172, 186, 216, 243, 248, 258, 279, 324, 344, 372, 387, 421, 432, 486, 496, 516, 558, 648, 688, 744, 774, 837, 842, 972, 1032, 1116, 1161, 1263, 1296, 1333, 1488, 1548, 1674, 1684, 1944, 2064, 2232, 2322, 2511, 2526, 2666, 3096, 3348, 3368, 3483, 3789, 3888, 3999, 4464, 4644, 5022, 5052, 5332, 6192, 6696, 6736, 6966, 7533, 7578, 7998, 9288, 10044, 10104, 10449, 10664, 11367, 11997, 13051, 13392, 13932, 15066, 15156, 15996, 18103, 18576, 20088, 20208, 20898, 21328, 22734, 23994, 26102, 27864, 30132, 30312, 31992, 34101, 35991, 36206, 39153, 40176, 41796, 45468, 47988, 52204, 54309, 55728, 60264, 60624, 63984, 68202, 71982, 72412, 78306, 83592, 90936, 95976, 102303, 104408, 107973, 108618, 117459, 120528, 136404, 143964, 144824, 156612, 162927, 167184, 181872, 191952, 204606, 208816, 215946, 217236, 234918, 272808, 287928, 289648, 313224, 323919, 325854, 352377, 409212, 431892, 434472, 469836, 488781, 545616, 561193, 575856, 626448, 647838, 651708, 704754, 818424, 863784, 868944, 939672, 977562, 1057131, 1122386, 1295676, 1303416, 1409508, 1466343, 1636848, 1683579, 1727568, 1879344, 1955124, 2114262, 2244772, 2591352, 2606832, 2819016, 2932686, 3171393, 3367158, 3910248, 4228524, 4399029, 4489544, 5050737, 5182704, 5638032, 5865372, 6342786, 6734316, 7820496, 8457048, 8798058, 8979088, 10101474, 11730744, 12685572, 13468632, 15152211, 16914096, 17596116, 20202948, 23461488, 25371144, 26937264, 30304422, 35192232, 40405896, 45456633, 50742288, 60608844, 70384464, 80811792, 90913266, 121217688, 136369899, 181826532, 242435376, 272739798, 363653064, 545479596, 727306128, 1090959192, 2181918384]

約数ペア:

[(1, 2181918384), (2, 1090959192), (3, 727306128), (4, 545479596), (6, 363653064), (8, 272739798), (9, 242435376), (12, 181826532), (16, 136369899), (18, 121217688), (24, 90913266), (27, 80811792), (31, 70384464), (36, 60608844), (43, 50742288), (48, 45456633), (54, 40405896), (62, 35192232), (72, 30304422), (81, 26937264), (86, 25371144), (93, 23461488), (108, 20202948), (124, 17596116), (129, 16914096), (144, 15152211), (162, 13468632), (172, 12685572), (186, 11730744), (216, 10101474), (243, 8979088), (248, 8798058), (258, 8457048), (279, 7820496), (324, 6734316), (344, 6342786), (372, 5865372), (387, 5638032), (421, 5182704), (432, 5050737), (486, 4489544), (496, 4399029), (516, 4228524), (558, 3910248), (648, 3367158), (688, 3171393), (744, 2932686), (774, 2819016), (837, 2606832), (842, 2591352), (972, 2244772), (1032, 2114262), (1116, 1955124), (1161, 1879344), (1263, 1727568), (1296, 1683579), (1333, 1636848), (1488, 1466343), (1548, 1409508), (1674, 1303416), (1684, 1295676), (1944, 1122386), (2064, 1057131), (2232, 977562), (2322, 939672), (2511, 868944), (2526, 863784), (2666, 818424), (3096, 704754), (3348, 651708), (3368, 647838), (3483, 626448), (3789, 575856), (3888, 561193), (3999, 545616), (4464, 488781), (4644, 469836), (5022, 434472), (5052, 431892), (5332, 409212), (6192, 352377), (6696, 325854), (6736, 323919), (6966, 313224), (7533, 289648), (7578, 287928), (7998, 272808), (9288, 234918), (10044, 217236), (10104, 215946), (10449, 208816), (10664, 204606), (11367, 191952), (11997, 181872), (13051, 167184), (13392, 162927), (13932, 156612), (15066, 144824), (15156, 143964), (15996, 136404), (18103, 120528), (18576, 117459), (20088, 108618), (20208, 107973), (20898, 104408), (21328, 102303), (22734, 95976), (23994, 90936), (26102, 83592), (27864, 78306), (30132, 72412), (30312, 71982), (31992, 68202), (34101, 63984), (35991, 60624), (36206, 60264), (39153, 55728), (40176, 54309), (41796, 52204), (45468, 47988)]