81296384

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 88

約数和(自身を含む): 181577088

約数和(自身を除く): 100280704

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, 1024, 1576, 1612, 1664, 1984, 2561, 3152, 3224, 3328, 3968, 5122, 6107, 6304, 6448, 6656, 7936, 10244, 12214, 12608, 12896, 13312, 15872, 20488, 24428, 25216, 25792, 31744, 40976, 48856, 50432, 51584, 79391, 81952, 97712, 100864, 103168, 158782, 163904, 195424, 201728, 206336, 317564, 327808, 390848, 412672, 635128, 655616, 781696, 1270256, 1311232, 1563392, 2540512, 2622464, 3126784, 5081024, 6253568, 10162048, 20324096, 40648192, 81296384]

約数ペア:

[(1, 81296384), (2, 40648192), (4, 20324096), (8, 10162048), (13, 6253568), (16, 5081024), (26, 3126784), (31, 2622464), (32, 2540512), (52, 1563392), (62, 1311232), (64, 1270256), (104, 781696), (124, 655616), (128, 635128), (197, 412672), (208, 390848), (248, 327808), (256, 317564), (394, 206336), (403, 201728), (416, 195424), (496, 163904), (512, 158782), (788, 103168), (806, 100864), (832, 97712), (992, 81952), (1024, 79391), (1576, 51584), (1612, 50432), (1664, 48856), (1984, 40976), (2561, 31744), (3152, 25792), (3224, 25216), (3328, 24428), (3968, 20488), (5122, 15872), (6107, 13312), (6304, 12896), (6448, 12608), (6656, 12214), (7936, 10244)]