208718328

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:677

約数の個数: 128

約数和(自身を含む): 646571520

約数和(自身を除く): 437853192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 227, 273, 312, 364, 421, 454, 546, 681, 728, 842, 908, 1092, 1263, 1362, 1589, 1684, 1816, 2184, 2526, 2724, 2947, 2951, 3178, 3368, 4767, 5052, 5448, 5473, 5894, 5902, 6356, 8841, 8853, 9534, 10104, 10946, 11788, 11804, 12712, 16419, 17682, 17706, 19068, 20657, 21892, 23576, 23608, 32838, 35364, 35412, 38136, 38311, 41314, 43784, 61971, 65676, 70728, 70824, 76622, 82628, 95567, 114933, 123942, 131352, 153244, 165256, 191134, 229866, 247884, 286701, 306488, 382268, 459732, 495768, 573402, 668969, 764536, 919464, 1146804, 1242371, 1337938, 2006907, 2293608, 2484742, 2675876, 3727113, 4013814, 4969484, 5351752, 7454226, 8027628, 8696597, 9938968, 14908452, 16055256, 17393194, 26089791, 29816904, 34786388, 52179582, 69572776, 104359164, 208718328]

約数ペア:

[(1, 208718328), (2, 104359164), (3, 69572776), (4, 52179582), (6, 34786388), (7, 29816904), (8, 26089791), (12, 17393194), (13, 16055256), (14, 14908452), (21, 9938968), (24, 8696597), (26, 8027628), (28, 7454226), (39, 5351752), (42, 4969484), (52, 4013814), (56, 3727113), (78, 2675876), (84, 2484742), (91, 2293608), (104, 2006907), (156, 1337938), (168, 1242371), (182, 1146804), (227, 919464), (273, 764536), (312, 668969), (364, 573402), (421, 495768), (454, 459732), (546, 382268), (681, 306488), (728, 286701), (842, 247884), (908, 229866), (1092, 191134), (1263, 165256), (1362, 153244), (1589, 131352), (1684, 123942), (1816, 114933), (2184, 95567), (2526, 82628), (2724, 76622), (2947, 70824), (2951, 70728), (3178, 65676), (3368, 61971), (4767, 43784), (5052, 41314), (5448, 38311), (5473, 38136), (5894, 35412), (5902, 35364), (6356, 32838), (8841, 23608), (8853, 23576), (9534, 21892), (10104, 20657), (10946, 19068), (11788, 17706), (11804, 17682), (12712, 16419)]