640951168

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1$

素因数の和:173

約数の個数: 192

約数和(自身を含む): 1599559920

約数和(自身を除く): 958608752

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 32, 38, 44, 52, 64, 76, 88, 97, 104, 128, 143, 152, 176, 194, 208, 209, 247, 286, 304, 352, 361, 388, 416, 418, 494, 572, 608, 704, 722, 776, 832, 836, 988, 1067, 1144, 1216, 1261, 1408, 1444, 1552, 1664, 1672, 1843, 1976, 2134, 2288, 2432, 2522, 2717, 2888, 3104, 3344, 3686, 3952, 3971, 4268, 4576, 4693, 5044, 5434, 5776, 6208, 6688, 7372, 7904, 7942, 8536, 9152, 9386, 10088, 10868, 11552, 12416, 13376, 13871, 14744, 15808, 15884, 17072, 18304, 18772, 20176, 20273, 21736, 23104, 23959, 26752, 27742, 29488, 31616, 31768, 34144, 35017, 37544, 40352, 40546, 43472, 46208, 47918, 51623, 55484, 58976, 63536, 68288, 70034, 75088, 80704, 81092, 86944, 95836, 103246, 110968, 117952, 127072, 136576, 140068, 150176, 161408, 162184, 173888, 191672, 206492, 221936, 235904, 254144, 263549, 280136, 300352, 324368, 347776, 383344, 385187, 412984, 443872, 455221, 508288, 527098, 560272, 600704, 648736, 766688, 770374, 825968, 887744, 910442, 1054196, 1120544, 1297472, 1533376, 1540748, 1651936, 1775488, 1820884, 2108392, 2241088, 2594944, 3066752, 3081496, 3303872, 3641768, 4216784, 4482176, 5007431, 6162992, 6607744, 7283536, 8433568, 10014862, 12325984, 14567072, 16867136, 20029724, 24651968, 29134144, 33734272, 40059448, 49303936, 58268288, 80118896, 160237792, 320475584, 640951168]

約数ペア:

[(1, 640951168), (2, 320475584), (4, 160237792), (8, 80118896), (11, 58268288), (13, 49303936), (16, 40059448), (19, 33734272), (22, 29134144), (26, 24651968), (32, 20029724), (38, 16867136), (44, 14567072), (52, 12325984), (64, 10014862), (76, 8433568), (88, 7283536), (97, 6607744), (104, 6162992), (128, 5007431), (143, 4482176), (152, 4216784), (176, 3641768), (194, 3303872), (208, 3081496), (209, 3066752), (247, 2594944), (286, 2241088), (304, 2108392), (352, 1820884), (361, 1775488), (388, 1651936), (416, 1540748), (418, 1533376), (494, 1297472), (572, 1120544), (608, 1054196), (704, 910442), (722, 887744), (776, 825968), (832, 770374), (836, 766688), (988, 648736), (1067, 600704), (1144, 560272), (1216, 527098), (1261, 508288), (1408, 455221), (1444, 443872), (1552, 412984), (1664, 385187), (1672, 383344), (1843, 347776), (1976, 324368), (2134, 300352), (2288, 280136), (2432, 263549), (2522, 254144), (2717, 235904), (2888, 221936), (3104, 206492), (3344, 191672), (3686, 173888), (3952, 162184), (3971, 161408), (4268, 150176), (4576, 140068), (4693, 136576), (5044, 127072), (5434, 117952), (5776, 110968), (6208, 103246), (6688, 95836), (7372, 86944), (7904, 81092), (7942, 80704), (8536, 75088), (9152, 70034), (9386, 68288), (10088, 63536), (10868, 58976), (11552, 55484), (12416, 51623), (13376, 47918), (13871, 46208), (14744, 43472), (15808, 40546), (15884, 40352), (17072, 37544), (18304, 35017), (18772, 34144), (20176, 31768), (20273, 31616), (21736, 29488), (23104, 27742), (23959, 26752)]