20639243880

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1801}}^1$

素因数の和:1964

約数の個数: 256

約数和(自身を含む): 70217452800

約数和(自身を除く): 49578208920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 131, 135, 162, 180, 216, 243, 262, 270, 324, 360, 393, 405, 486, 524, 540, 648, 655, 729, 786, 810, 972, 1048, 1080, 1179, 1215, 1310, 1458, 1572, 1620, 1801, 1944, 1965, 2187, 2358, 2430, 2620, 2916, 3144, 3240, 3537, 3602, 3645, 3930, 4374, 4716, 4860, 5240, 5403, 5832, 5895, 7074, 7204, 7290, 7860, 8748, 9005, 9432, 9720, 10611, 10806, 10935, 11790, 14148, 14408, 14580, 15720, 16209, 17496, 17685, 18010, 21222, 21612, 21870, 23580, 27015, 28296, 29160, 31833, 32418, 35370, 36020, 42444, 43224, 43740, 47160, 48627, 53055, 54030, 63666, 64836, 70740, 72040, 81045, 84888, 87480, 95499, 97254, 106110, 108060, 127332, 129672, 141480, 145881, 159165, 162090, 190998, 194508, 212220, 216120, 235931, 243135, 254664, 286497, 291762, 318330, 324180, 381996, 389016, 424440, 437643, 471862, 477495, 486270, 572994, 583524, 636660, 648360, 707793, 729405, 763992, 875286, 943724, 954990, 972540, 1145988, 1167048, 1179655, 1273320, 1312929, 1415586, 1432485, 1458810, 1750572, 1887448, 1909980, 1945080, 2123379, 2188215, 2291976, 2359310, 2625858, 2831172, 2864970, 2917620, 3501144, 3538965, 3819960, 3938787, 4246758, 4376430, 4718620, 5251716, 5662344, 5729940, 5835240, 6370137, 6564645, 7077930, 7877574, 8493516, 8752860, 9437240, 10503432, 10616895, 11459880, 12740274, 13129290, 14155860, 15755148, 16987032, 17505720, 19110411, 19693935, 21233790, 25480548, 26258580, 28311720, 31510296, 31850685, 38220822, 39387870, 42467580, 50961096, 52517160, 57331233, 63701370, 76441644, 78775740, 84935160, 95552055, 114662466, 127402740, 152883288, 157551480, 171993699, 191104110, 229324932, 254805480, 286656165, 343987398, 382208220, 458649864, 515981097, 573312330, 687974796, 764416440, 859968495, 1031962194, 1146624660, 1375949592, 1719936990, 2063924388, 2293249320, 2579905485, 3439873980, 4127848776, 5159810970, 6879747960, 10319621940, 20639243880]

約数ペア:

[(1, 20639243880), (2, 10319621940), (3, 6879747960), (4, 5159810970), (5, 4127848776), (6, 3439873980), (8, 2579905485), (9, 2293249320), (10, 2063924388), (12, 1719936990), (15, 1375949592), (18, 1146624660), (20, 1031962194), (24, 859968495), (27, 764416440), (30, 687974796), (36, 573312330), (40, 515981097), (45, 458649864), (54, 382208220), (60, 343987398), (72, 286656165), (81, 254805480), (90, 229324932), (108, 191104110), (120, 171993699), (131, 157551480), (135, 152883288), (162, 127402740), (180, 114662466), (216, 95552055), (243, 84935160), (262, 78775740), (270, 76441644), (324, 63701370), (360, 57331233), (393, 52517160), (405, 50961096), (486, 42467580), (524, 39387870), (540, 38220822), (648, 31850685), (655, 31510296), (729, 28311720), (786, 26258580), (810, 25480548), (972, 21233790), (1048, 19693935), (1080, 19110411), (1179, 17505720), (1215, 16987032), (1310, 15755148), (1458, 14155860), (1572, 13129290), (1620, 12740274), (1801, 11459880), (1944, 10616895), (1965, 10503432), (2187, 9437240), (2358, 8752860), (2430, 8493516), (2620, 7877574), (2916, 7077930), (3144, 6564645), (3240, 6370137), (3537, 5835240), (3602, 5729940), (3645, 5662344), (3930, 5251716), (4374, 4718620), (4716, 4376430), (4860, 4246758), (5240, 3938787), (5403, 3819960), (5832, 3538965), (5895, 3501144), (7074, 2917620), (7204, 2864970), (7290, 2831172), (7860, 2625858), (8748, 2359310), (9005, 2291976), (9432, 2188215), (9720, 2123379), (10611, 1945080), (10806, 1909980), (10935, 1887448), (11790, 1750572), (14148, 1458810), (14408, 1432485), (14580, 1415586), (15720, 1312929), (16209, 1273320), (17496, 1179655), (17685, 1167048), (18010, 1145988), (21222, 972540), (21612, 954990), (21870, 943724), (23580, 875286), (27015, 763992), (28296, 729405), (29160, 707793), (31833, 648360), (32418, 636660), (35370, 583524), (36020, 572994), (42444, 486270), (43224, 477495), (43740, 471862), (47160, 437643), (48627, 424440), (53055, 389016), (54030, 381996), (63666, 324180), (64836, 318330), (70740, 291762), (72040, 286497), (81045, 254664), (84888, 243135), (87480, 235931), (95499, 216120), (97254, 212220), (106110, 194508), (108060, 190998), (127332, 162090), (129672, 159165), (141480, 145881)]