18861380096

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{91411}}^1$

素因数の和:91473

約数の個数: 80

約数和(自身を含む): 41894485248

約数和(自身を除く): 23033105152

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 512, 806, 832, 992, 1612, 1664, 1984, 3224, 3328, 3968, 6448, 6656, 7936, 12896, 15872, 25792, 51584, 91411, 103168, 182822, 206336, 365644, 731288, 1188343, 1462576, 2376686, 2833741, 2925152, 4753372, 5667482, 5850304, 9506744, 11334964, 11700608, 19013488, 22669928, 23401216, 36838633, 38026976, 45339856, 46802432, 73677266, 76053952, 90679712, 147354532, 152107904, 181359424, 294709064, 304215808, 362718848, 589418128, 608431616, 725437696, 1178836256, 1450875392, 2357672512, 4715345024, 9430690048, 18861380096]

約数ペア:

[(1, 18861380096), (2, 9430690048), (4, 4715345024), (8, 2357672512), (13, 1450875392), (16, 1178836256), (26, 725437696), (31, 608431616), (32, 589418128), (52, 362718848), (62, 304215808), (64, 294709064), (104, 181359424), (124, 152107904), (128, 147354532), (208, 90679712), (248, 76053952), (256, 73677266), (403, 46802432), (416, 45339856), (496, 38026976), (512, 36838633), (806, 23401216), (832, 22669928), (992, 19013488), (1612, 11700608), (1664, 11334964), (1984, 9506744), (3224, 5850304), (3328, 5667482), (3968, 4753372), (6448, 2925152), (6656, 2833741), (7936, 2376686), (12896, 1462576), (15872, 1188343), (25792, 731288), (51584, 365644), (91411, 206336), (103168, 182822)]