40648192

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:259

約数の個数: 80

約数和(自身を含む): 90744192

約数和(自身を除く): 50096000

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 197, 208, 248, 256, 394, 403, 416, 496, 512, 788, 806, 832, 992, 1576, 1612, 1664, 1984, 2561, 3152, 3224, 3328, 3968, 5122, 6107, 6304, 6448, 6656, 7936, 10244, 12214, 12608, 12896, 15872, 20488, 24428, 25216, 25792, 40976, 48856, 50432, 51584, 79391, 81952, 97712, 100864, 103168, 158782, 163904, 195424, 206336, 317564, 327808, 390848, 635128, 655616, 781696, 1270256, 1311232, 1563392, 2540512, 3126784, 5081024, 10162048, 20324096, 40648192]

約数ペア:

[(1, 40648192), (2, 20324096), (4, 10162048), (8, 5081024), (13, 3126784), (16, 2540512), (26, 1563392), (31, 1311232), (32, 1270256), (52, 781696), (62, 655616), (64, 635128), (104, 390848), (124, 327808), (128, 317564), (197, 206336), (208, 195424), (248, 163904), (256, 158782), (394, 103168), (403, 100864), (416, 97712), (496, 81952), (512, 79391), (788, 51584), (806, 50432), (832, 48856), (992, 40976), (1576, 25792), (1612, 25216), (1664, 24428), (1984, 20488), (2561, 15872), (3152, 12896), (3224, 12608), (3328, 12214), (3968, 10244), (5122, 7936), (6107, 6656), (6304, 6448)]