291279248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1123}}^1$

素因数の和:1216

約数の個数: 80

約数和(自身を含む): 643917120

約数和(自身を除く): 352637872

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 43, 52, 58, 86, 104, 116, 172, 208, 232, 344, 377, 464, 559, 688, 754, 1118, 1123, 1247, 1508, 2236, 2246, 2494, 3016, 4472, 4492, 4988, 6032, 8944, 8984, 9976, 14599, 16211, 17968, 19952, 29198, 32422, 32567, 48289, 58396, 64844, 65134, 96578, 116792, 129688, 130268, 193156, 233584, 259376, 260536, 386312, 423371, 521072, 627757, 772624, 846742, 1255514, 1400381, 1693484, 2511028, 2800762, 3386968, 5022056, 5601524, 6773936, 10044112, 11203048, 18204953, 22406096, 36409906, 72819812, 145639624, 291279248]

約数ペア:

[(1, 291279248), (2, 145639624), (4, 72819812), (8, 36409906), (13, 22406096), (16, 18204953), (26, 11203048), (29, 10044112), (43, 6773936), (52, 5601524), (58, 5022056), (86, 3386968), (104, 2800762), (116, 2511028), (172, 1693484), (208, 1400381), (232, 1255514), (344, 846742), (377, 772624), (464, 627757), (559, 521072), (688, 423371), (754, 386312), (1118, 260536), (1123, 259376), (1247, 233584), (1508, 193156), (2236, 130268), (2246, 129688), (2494, 116792), (3016, 96578), (4472, 65134), (4492, 64844), (4988, 58396), (6032, 48289), (8944, 32567), (8984, 32422), (9976, 29198), (14599, 19952), (16211, 17968)]