20784445920

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{12347}}^1$

素因数の和:12542

約数の個数: 288

約数和(自身を含む): 81551328768

約数和(自身を除く): 60766882848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 167, 168, 180, 210, 224, 240, 252, 280, 288, 315, 334, 336, 360, 420, 480, 501, 504, 560, 630, 668, 672, 720, 835, 840, 1002, 1008, 1120, 1169, 1260, 1336, 1440, 1503, 1670, 1680, 2004, 2016, 2338, 2505, 2520, 2672, 3006, 3340, 3360, 3507, 4008, 4676, 5010, 5040, 5344, 5845, 6012, 6680, 7014, 7515, 8016, 9352, 10020, 10080, 10521, 11690, 12024, 12347, 13360, 14028, 15030, 16032, 17535, 18704, 20040, 21042, 23380, 24048, 24694, 26720, 28056, 30060, 35070, 37041, 37408, 40080, 42084, 46760, 48096, 49388, 52605, 56112, 60120, 61735, 70140, 74082, 80160, 84168, 86429, 93520, 98776, 105210, 111123, 112224, 120240, 123470, 140280, 148164, 168336, 172858, 185205, 187040, 197552, 210420, 222246, 240480, 246940, 259287, 280560, 296328, 336672, 345716, 370410, 395104, 420840, 432145, 444492, 493880, 518574, 555615, 561120, 592656, 691432, 740820, 777861, 841680, 864290, 888984, 987760, 1037148, 1111230, 1185312, 1296435, 1382864, 1481640, 1555722, 1683360, 1728580, 1777968, 1975520, 2061949, 2074296, 2222460, 2592870, 2765728, 2963280, 3111444, 3457160, 3555936, 3889305, 4123898, 4148592, 4444920, 5185740, 5926560, 6185847, 6222888, 6914320, 7778610, 8247796, 8297184, 8889840, 10309745, 10371480, 12371694, 12445776, 13828640, 14433643, 15557220, 16495592, 17779680, 18557541, 20619490, 20742960, 24743388, 24891552, 28867286, 30929235, 31114440, 32991184, 37115082, 41238980, 41485920, 43300929, 49486776, 57734572, 61858470, 62228880, 65982368, 72168215, 74230164, 82477960, 86601858, 92787705, 98973552, 115469144, 123716940, 124457760, 129902787, 144336430, 148460328, 164955920, 173203716, 185575410, 197947104, 216504645, 230938288, 247433880, 259805574, 288672860, 296920656, 329911840, 346407432, 371150820, 433009290, 461876576, 494867760, 519611148, 577345720, 593841312, 649513935, 692814864, 742301640, 866018580, 989735520, 1039222296, 1154691440, 1299027870, 1385629728, 1484603280, 1732037160, 2078444592, 2309382880, 2598055740, 2969206560, 3464074320, 4156889184, 5196111480, 6928148640, 10392222960, 20784445920]

約数ペア:

[(1, 20784445920), (2, 10392222960), (3, 6928148640), (4, 5196111480), (5, 4156889184), (6, 3464074320), (7, 2969206560), (8, 2598055740), (9, 2309382880), (10, 2078444592), (12, 1732037160), (14, 1484603280), (15, 1385629728), (16, 1299027870), (18, 1154691440), (20, 1039222296), (21, 989735520), (24, 866018580), (28, 742301640), (30, 692814864), (32, 649513935), (35, 593841312), (36, 577345720), (40, 519611148), (42, 494867760), (45, 461876576), (48, 433009290), (56, 371150820), (60, 346407432), (63, 329911840), (70, 296920656), (72, 288672860), (80, 259805574), (84, 247433880), (90, 230938288), (96, 216504645), (105, 197947104), (112, 185575410), (120, 173203716), (126, 164955920), (140, 148460328), (144, 144336430), (160, 129902787), (167, 124457760), (168, 123716940), (180, 115469144), (210, 98973552), (224, 92787705), (240, 86601858), (252, 82477960), (280, 74230164), (288, 72168215), (315, 65982368), (334, 62228880), (336, 61858470), (360, 57734572), (420, 49486776), (480, 43300929), (501, 41485920), (504, 41238980), (560, 37115082), (630, 32991184), (668, 31114440), (672, 30929235), (720, 28867286), (835, 24891552), (840, 24743388), (1002, 20742960), (1008, 20619490), (1120, 18557541), (1169, 17779680), (1260, 16495592), (1336, 15557220), (1440, 14433643), (1503, 13828640), (1670, 12445776), (1680, 12371694), (2004, 10371480), (2016, 10309745), (2338, 8889840), (2505, 8297184), (2520, 8247796), (2672, 7778610), (3006, 6914320), (3340, 6222888), (3360, 6185847), (3507, 5926560), (4008, 5185740), (4676, 4444920), (5010, 4148592), (5040, 4123898), (5344, 3889305), (5845, 3555936), (6012, 3457160), (6680, 3111444), (7014, 2963280), (7515, 2765728), (8016, 2592870), (9352, 2222460), (10020, 2074296), (10080, 2061949), (10521, 1975520), (11690, 1777968), (12024, 1728580), (12347, 1683360), (13360, 1555722), (14028, 1481640), (15030, 1382864), (16032, 1296435), (17535, 1185312), (18704, 1111230), (20040, 1037148), (21042, 987760), (23380, 888984), (24048, 864290), (24694, 841680), (26720, 777861), (28056, 740820), (30060, 691432), (35070, 592656), (37041, 561120), (37408, 555615), (40080, 518574), (42084, 493880), (46760, 444492), (48096, 432145), (49388, 420840), (52605, 395104), (56112, 370410), (60120, 345716), (61735, 336672), (70140, 296328), (74082, 280560), (80160, 259287), (84168, 246940), (86429, 240480), (93520, 222246), (98776, 210420), (105210, 197552), (111123, 187040), (112224, 185205), (120240, 172858), (123470, 168336), (140280, 148164)]