20805505448

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{57503}}^1$

素因数の和:57607

約数の個数: 96

約数和(自身を含む): 49559247360

約数和(自身を除く): 28753741912

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 71, 91, 98, 104, 142, 182, 196, 284, 364, 392, 497, 568, 637, 728, 923, 994, 1274, 1846, 1988, 2548, 3479, 3692, 3976, 5096, 6461, 6958, 7384, 12922, 13916, 25844, 27832, 45227, 51688, 57503, 90454, 115006, 180908, 230012, 361816, 402521, 460024, 747539, 805042, 1495078, 1610084, 2817647, 2990156, 3220168, 4082713, 5232773, 5635294, 5980312, 8165426, 10465546, 11270588, 16330852, 20931092, 22541176, 28578991, 32661704, 36629411, 41862184, 53075269, 57157982, 73258822, 106150538, 114315964, 146517644, 200052937, 212301076, 228631928, 293035288, 371526883, 400105874, 424602152, 743053766, 800211748, 1486107532, 1600423496, 2600688181, 2972215064, 5201376362, 10402752724, 20805505448]

約数ペア:

[(1, 20805505448), (2, 10402752724), (4, 5201376362), (7, 2972215064), (8, 2600688181), (13, 1600423496), (14, 1486107532), (26, 800211748), (28, 743053766), (49, 424602152), (52, 400105874), (56, 371526883), (71, 293035288), (91, 228631928), (98, 212301076), (104, 200052937), (142, 146517644), (182, 114315964), (196, 106150538), (284, 73258822), (364, 57157982), (392, 53075269), (497, 41862184), (568, 36629411), (637, 32661704), (728, 28578991), (923, 22541176), (994, 20931092), (1274, 16330852), (1846, 11270588), (1988, 10465546), (2548, 8165426), (3479, 5980312), (3692, 5635294), (3976, 5232773), (5096, 4082713), (6461, 3220168), (6958, 2990156), (7384, 2817647), (12922, 1610084), (13916, 1495078), (25844, 805042), (27832, 747539), (45227, 460024), (51688, 402521), (57503, 361816), (90454, 230012), (115006, 180908)]