291378984

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 836676000

約数和(自身を除く): 545297016

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 169, 199, 228, 247, 312, 338, 361, 398, 456, 494, 507, 597, 676, 722, 741, 796, 988, 1014, 1083, 1194, 1352, 1444, 1482, 1592, 1976, 2028, 2166, 2388, 2587, 2888, 2964, 3211, 3781, 4056, 4332, 4693, 4776, 5174, 5928, 6422, 7562, 7761, 8664, 9386, 9633, 10348, 11343, 12844, 14079, 15124, 15522, 18772, 19266, 20696, 22686, 25688, 28158, 30248, 31044, 33631, 37544, 38532, 45372, 49153, 56316, 61009, 62088, 67262, 71839, 77064, 90744, 98306, 100893, 112632, 122018, 134524, 143678, 147459, 183027, 196612, 201786, 215517, 244036, 269048, 287356, 294918, 366054, 393224, 403572, 431034, 488072, 574712, 589836, 638989, 732108, 807144, 862068, 933907, 1179672, 1277978, 1464216, 1724136, 1867814, 1916967, 2555956, 2801721, 3735628, 3833934, 5111912, 5603442, 7471256, 7667868, 11206884, 12140791, 15335736, 22413768, 24281582, 36422373, 48563164, 72844746, 97126328, 145689492, 291378984]

約数ペア:

[(1, 291378984), (2, 145689492), (3, 97126328), (4, 72844746), (6, 48563164), (8, 36422373), (12, 24281582), (13, 22413768), (19, 15335736), (24, 12140791), (26, 11206884), (38, 7667868), (39, 7471256), (52, 5603442), (57, 5111912), (76, 3833934), (78, 3735628), (104, 2801721), (114, 2555956), (152, 1916967), (156, 1867814), (169, 1724136), (199, 1464216), (228, 1277978), (247, 1179672), (312, 933907), (338, 862068), (361, 807144), (398, 732108), (456, 638989), (494, 589836), (507, 574712), (597, 488072), (676, 431034), (722, 403572), (741, 393224), (796, 366054), (988, 294918), (1014, 287356), (1083, 269048), (1194, 244036), (1352, 215517), (1444, 201786), (1482, 196612), (1592, 183027), (1976, 147459), (2028, 143678), (2166, 134524), (2388, 122018), (2587, 112632), (2888, 100893), (2964, 98306), (3211, 90744), (3781, 77064), (4056, 71839), (4332, 67262), (4693, 62088), (4776, 61009), (5174, 56316), (5928, 49153), (6422, 45372), (7562, 38532), (7761, 37544), (8664, 33631), (9386, 31044), (9633, 30248), (10348, 28158), (11343, 25688), (12844, 22686), (14079, 20696), (15124, 19266), (15522, 18772)]