21007985280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{2693}}^1$

素因数の和:2971

約数の個数: 256

約数和(自身を含む): 71225049600

約数和(自身を除く): 50217064320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 239, 240, 255, 272, 320, 340, 384, 408, 478, 480, 510, 544, 640, 680, 717, 816, 956, 960, 1020, 1088, 1195, 1360, 1434, 1632, 1912, 1920, 2040, 2176, 2390, 2693, 2720, 2868, 3264, 3585, 3824, 4063, 4080, 4780, 5386, 5440, 5736, 6528, 7170, 7648, 8079, 8126, 8160, 9560, 10772, 10880, 11472, 12189, 13465, 14340, 15296, 16158, 16252, 16320, 19120, 20315, 21544, 22944, 24378, 26930, 28680, 30592, 32316, 32504, 32640, 38240, 40395, 40630, 43088, 45781, 45888, 48756, 53860, 57360, 60945, 64632, 65008, 76480, 80790, 81260, 86176, 91562, 91776, 97512, 107720, 114720, 121890, 129264, 130016, 137343, 152960, 161580, 162520, 172352, 183124, 195024, 215440, 228905, 229440, 243780, 258528, 260032, 274686, 323160, 325040, 344704, 366248, 390048, 430880, 457810, 458880, 487560, 517056, 520064, 549372, 643627, 646320, 650080, 686715, 732496, 780096, 861760, 915620, 975120, 1034112, 1098744, 1287254, 1292640, 1300160, 1373430, 1464992, 1560192, 1723520, 1831240, 1930881, 1950240, 2197488, 2574508, 2585280, 2600320, 2746860, 2929984, 3218135, 3662480, 3861762, 3900480, 4394976, 5149016, 5170560, 5493720, 5859968, 6436270, 7324960, 7723524, 7800960, 8789952, 9654405, 10298032, 10941659, 10987440, 12872540, 14649920, 15447048, 17579904, 19308810, 20596064, 21883318, 21974880, 25745080, 29299840, 30894096, 32824977, 38617620, 41192128, 43766636, 43949760, 51490160, 54708295, 61788192, 65649954, 77235240, 82384256, 87533272, 87899520, 102980320, 109416590, 123576384, 131299908, 154470480, 164124885, 175066544, 205960640, 218833180, 247152768, 262599816, 308940960, 328249770, 350133088, 411921280, 437666360, 525199632, 617881920, 656499540, 700266176, 875332720, 1050399264, 1235763840, 1312999080, 1400532352, 1750665440, 2100798528, 2625998160, 3501330880, 4201597056, 5251996320, 7002661760, 10503992640, 21007985280]

約数ペア:

[(1, 21007985280), (2, 10503992640), (3, 7002661760), (4, 5251996320), (5, 4201597056), (6, 3501330880), (8, 2625998160), (10, 2100798528), (12, 1750665440), (15, 1400532352), (16, 1312999080), (17, 1235763840), (20, 1050399264), (24, 875332720), (30, 700266176), (32, 656499540), (34, 617881920), (40, 525199632), (48, 437666360), (51, 411921280), (60, 350133088), (64, 328249770), (68, 308940960), (80, 262599816), (85, 247152768), (96, 218833180), (102, 205960640), (120, 175066544), (128, 164124885), (136, 154470480), (160, 131299908), (170, 123576384), (192, 109416590), (204, 102980320), (239, 87899520), (240, 87533272), (255, 82384256), (272, 77235240), (320, 65649954), (340, 61788192), (384, 54708295), (408, 51490160), (478, 43949760), (480, 43766636), (510, 41192128), (544, 38617620), (640, 32824977), (680, 30894096), (717, 29299840), (816, 25745080), (956, 21974880), (960, 21883318), (1020, 20596064), (1088, 19308810), (1195, 17579904), (1360, 15447048), (1434, 14649920), (1632, 12872540), (1912, 10987440), (1920, 10941659), (2040, 10298032), (2176, 9654405), (2390, 8789952), (2693, 7800960), (2720, 7723524), (2868, 7324960), (3264, 6436270), (3585, 5859968), (3824, 5493720), (4063, 5170560), (4080, 5149016), (4780, 4394976), (5386, 3900480), (5440, 3861762), (5736, 3662480), (6528, 3218135), (7170, 2929984), (7648, 2746860), (8079, 2600320), (8126, 2585280), (8160, 2574508), (9560, 2197488), (10772, 1950240), (10880, 1930881), (11472, 1831240), (12189, 1723520), (13465, 1560192), (14340, 1464992), (15296, 1373430), (16158, 1300160), (16252, 1292640), (16320, 1287254), (19120, 1098744), (20315, 1034112), (21544, 975120), (22944, 915620), (24378, 861760), (26930, 780096), (28680, 732496), (30592, 686715), (32316, 650080), (32504, 646320), (32640, 643627), (38240, 549372), (40395, 520064), (40630, 517056), (43088, 487560), (45781, 458880), (45888, 457810), (48756, 430880), (53860, 390048), (57360, 366248), (60945, 344704), (64632, 325040), (65008, 323160), (76480, 274686), (80790, 260032), (81260, 258528), (86176, 243780), (91562, 229440), (91776, 228905), (97512, 215440), (107720, 195024), (114720, 183124), (121890, 172352), (129264, 162520), (130016, 161580), (137343, 152960)]