20784340440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1\times {\mathrm{811}}^1$

素因数の和:1362

約数の個数: 192

約数和(自身を含む): 68140668960

約数和(自身を除く): 47356328520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 257, 277, 360, 514, 554, 771, 811, 831, 1028, 1108, 1285, 1385, 1542, 1622, 1662, 2056, 2216, 2313, 2433, 2493, 2570, 2770, 3084, 3244, 3324, 3855, 4055, 4155, 4626, 4866, 4986, 5140, 5540, 6168, 6488, 6648, 7299, 7710, 8110, 8310, 9252, 9732, 9972, 10280, 11080, 11565, 12165, 12465, 14598, 15420, 16220, 16620, 18504, 19464, 19944, 23130, 24330, 24930, 29196, 30840, 32440, 33240, 36495, 46260, 48660, 49860, 58392, 71189, 72990, 92520, 97320, 99720, 142378, 145980, 208427, 213567, 224647, 284756, 291960, 355945, 416854, 427134, 449294, 569512, 625281, 640701, 673941, 711890, 833708, 854268, 898588, 1042135, 1067835, 1123235, 1250562, 1281402, 1347882, 1423780, 1667416, 1708536, 1797176, 1875843, 2021823, 2084270, 2135670, 2246470, 2501124, 2562804, 2695764, 2847560, 3126405, 3203505, 3369705, 3751686, 4043646, 4168540, 4271340, 4492940, 5002248, 5125608, 5391528, 6252810, 6407010, 6739410, 7503372, 8087292, 8337080, 8542680, 8985880, 9379215, 10109115, 12505620, 12814020, 13478820, 15006744, 16174584, 18758430, 20218230, 25011240, 25628040, 26957640, 37516860, 40436460, 57734279, 75033720, 80872920, 115468558, 173202837, 230937116, 288671395, 346405674, 461874232, 519608511, 577342790, 692811348, 866014185, 1039217022, 1154685580, 1385622696, 1732028370, 2078434044, 2309371160, 2598042555, 3464056740, 4156868088, 5196085110, 6928113480, 10392170220, 20784340440]

約数ペア:

[(1, 20784340440), (2, 10392170220), (3, 6928113480), (4, 5196085110), (5, 4156868088), (6, 3464056740), (8, 2598042555), (9, 2309371160), (10, 2078434044), (12, 1732028370), (15, 1385622696), (18, 1154685580), (20, 1039217022), (24, 866014185), (30, 692811348), (36, 577342790), (40, 519608511), (45, 461874232), (60, 346405674), (72, 288671395), (90, 230937116), (120, 173202837), (180, 115468558), (257, 80872920), (277, 75033720), (360, 57734279), (514, 40436460), (554, 37516860), (771, 26957640), (811, 25628040), (831, 25011240), (1028, 20218230), (1108, 18758430), (1285, 16174584), (1385, 15006744), (1542, 13478820), (1622, 12814020), (1662, 12505620), (2056, 10109115), (2216, 9379215), (2313, 8985880), (2433, 8542680), (2493, 8337080), (2570, 8087292), (2770, 7503372), (3084, 6739410), (3244, 6407010), (3324, 6252810), (3855, 5391528), (4055, 5125608), (4155, 5002248), (4626, 4492940), (4866, 4271340), (4986, 4168540), (5140, 4043646), (5540, 3751686), (6168, 3369705), (6488, 3203505), (6648, 3126405), (7299, 2847560), (7710, 2695764), (8110, 2562804), (8310, 2501124), (9252, 2246470), (9732, 2135670), (9972, 2084270), (10280, 2021823), (11080, 1875843), (11565, 1797176), (12165, 1708536), (12465, 1667416), (14598, 1423780), (15420, 1347882), (16220, 1281402), (16620, 1250562), (18504, 1123235), (19464, 1067835), (19944, 1042135), (23130, 898588), (24330, 854268), (24930, 833708), (29196, 711890), (30840, 673941), (32440, 640701), (33240, 625281), (36495, 569512), (46260, 449294), (48660, 427134), (49860, 416854), (58392, 355945), (71189, 291960), (72990, 284756), (92520, 224647), (97320, 213567), (99720, 208427), (142378, 145980)]