261895968

素因数分解:

$2^5\times 3^2\times {\mathrm{73}}^1\times {\mathrm{12457}}^1$

素因数の和:12546

約数の個数: 72

約数和(自身を含む): 755029548

約数和(自身を除く): 493133580

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 73, 96, 144, 146, 219, 288, 292, 438, 584, 657, 876, 1168, 1314, 1752, 2336, 2628, 3504, 5256, 7008, 10512, 12457, 21024, 24914, 37371, 49828, 74742, 99656, 112113, 149484, 199312, 224226, 298968, 398624, 448452, 597936, 896904, 909361, 1195872, 1793808, 1818722, 2728083, 3587616, 3637444, 5456166, 7274888, 8184249, 10912332, 14549776, 16368498, 21824664, 29099552, 32736996, 43649328, 65473992, 87298656, 130947984, 261895968]

約数ペア:

[(1, 261895968), (2, 130947984), (3, 87298656), (4, 65473992), (6, 43649328), (8, 32736996), (9, 29099552), (12, 21824664), (16, 16368498), (18, 14549776), (24, 10912332), (32, 8184249), (36, 7274888), (48, 5456166), (72, 3637444), (73, 3587616), (96, 2728083), (144, 1818722), (146, 1793808), (219, 1195872), (288, 909361), (292, 896904), (438, 597936), (584, 448452), (657, 398624), (876, 298968), (1168, 224226), (1314, 199312), (1752, 149484), (2336, 112113), (2628, 99656), (3504, 74742), (5256, 49828), (7008, 37371), (10512, 24914), (12457, 21024)]