1999475944

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:411

約数の個数: 128

約数和(自身を含む): 4371840000

約数和(自身を除く): 2372364056

約数列:

[1, 2, 4, 8, 17, 19, 31, 34, 38, 62, 68, 76, 109, 124, 136, 152, 218, 229, 248, 323, 436, 458, 527, 589, 646, 872, 916, 1054, 1178, 1292, 1832, 1853, 2071, 2108, 2356, 2584, 3379, 3706, 3893, 4142, 4216, 4351, 4712, 6758, 7099, 7412, 7786, 8284, 8702, 10013, 13516, 14198, 14824, 15572, 16568, 17404, 20026, 24961, 27032, 28396, 31144, 34808, 35207, 40052, 49922, 56792, 57443, 64201, 70414, 73967, 80104, 99844, 114886, 120683, 128402, 134881, 140828, 147934, 199688, 229772, 241366, 256804, 269762, 281656, 295868, 424337, 459544, 474259, 482732, 513608, 539524, 591736, 773791, 848674, 948518, 965464, 1079048, 1091417, 1547582, 1697348, 1897036, 2182834, 2292977, 3095164, 3394696, 3794072, 4365668, 4585954, 6190328, 8062403, 8731336, 9171908, 13154447, 14702029, 16124806, 18343816, 26308894, 29404058, 32249612, 52617788, 58808116, 64499224, 105235576, 117616232, 249934493, 499868986, 999737972, 1999475944]

約数ペア:

[(1, 1999475944), (2, 999737972), (4, 499868986), (8, 249934493), (17, 117616232), (19, 105235576), (31, 64499224), (34, 58808116), (38, 52617788), (62, 32249612), (68, 29404058), (76, 26308894), (109, 18343816), (124, 16124806), (136, 14702029), (152, 13154447), (218, 9171908), (229, 8731336), (248, 8062403), (323, 6190328), (436, 4585954), (458, 4365668), (527, 3794072), (589, 3394696), (646, 3095164), (872, 2292977), (916, 2182834), (1054, 1897036), (1178, 1697348), (1292, 1547582), (1832, 1091417), (1853, 1079048), (2071, 965464), (2108, 948518), (2356, 848674), (2584, 773791), (3379, 591736), (3706, 539524), (3893, 513608), (4142, 482732), (4216, 474259), (4351, 459544), (4712, 424337), (6758, 295868), (7099, 281656), (7412, 269762), (7786, 256804), (8284, 241366), (8702, 229772), (10013, 199688), (13516, 147934), (14198, 140828), (14824, 134881), (15572, 128402), (16568, 120683), (17404, 114886), (20026, 99844), (24961, 80104), (27032, 73967), (28396, 70414), (31144, 64201), (34808, 57443), (35207, 56792), (40052, 49922)]