20347979886

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{6217}}^1$

素因数の和:6506

約数の個数: 96

約数和(自身を含む): 48399519168

約数和(自身を除く): 28051539282

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 197, 213, 234, 394, 426, 591, 639, 923, 1182, 1278, 1773, 1846, 2561, 2769, 3546, 5122, 5538, 6217, 7683, 8307, 12434, 13987, 15366, 16614, 18651, 23049, 27974, 37302, 41961, 46098, 55953, 80821, 83922, 111906, 125883, 161642, 181831, 242463, 251766, 363662, 441407, 484926, 545493, 727389, 882814, 1090986, 1224749, 1324221, 1454778, 1636479, 2449498, 2648442, 3272958, 3674247, 3972663, 5738291, 7348494, 7945326, 11022741, 11476582, 15921737, 17214873, 22045482, 31843474, 34429746, 47765211, 51644619, 86957179, 95530422, 103289238, 143295633, 173914358, 260871537, 286591266, 521743074, 782614611, 1130443327, 1565229222, 2260886654, 3391329981, 6782659962, 10173989943, 20347979886]

約数ペア:

[(1, 20347979886), (2, 10173989943), (3, 6782659962), (6, 3391329981), (9, 2260886654), (13, 1565229222), (18, 1130443327), (26, 782614611), (39, 521743074), (71, 286591266), (78, 260871537), (117, 173914358), (142, 143295633), (197, 103289238), (213, 95530422), (234, 86957179), (394, 51644619), (426, 47765211), (591, 34429746), (639, 31843474), (923, 22045482), (1182, 17214873), (1278, 15921737), (1773, 11476582), (1846, 11022741), (2561, 7945326), (2769, 7348494), (3546, 5738291), (5122, 3972663), (5538, 3674247), (6217, 3272958), (7683, 2648442), (8307, 2449498), (12434, 1636479), (13987, 1454778), (15366, 1324221), (16614, 1224749), (18651, 1090986), (23049, 882814), (27974, 727389), (37302, 545493), (41961, 484926), (46098, 441407), (55953, 363662), (80821, 251766), (83922, 242463), (111906, 181831), (125883, 161642)]