218661248

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{397}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 471725520

約数和(自身を除く): 253064272

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 331, 397, 416, 662, 794, 832, 1324, 1588, 1664, 2648, 3176, 4303, 5161, 5296, 6352, 8606, 10322, 10592, 12704, 17212, 20644, 21184, 25408, 34424, 41288, 42368, 50816, 68848, 82576, 131407, 137696, 165152, 262814, 275392, 330304, 525628, 550784, 660608, 1051256, 1708291, 2102512, 3416582, 4205024, 6833164, 8410048, 13666328, 16820096, 27332656, 54665312, 109330624, 218661248]

約数ペア:

[(1, 218661248), (2, 109330624), (4, 54665312), (8, 27332656), (13, 16820096), (16, 13666328), (26, 8410048), (32, 6833164), (52, 4205024), (64, 3416582), (104, 2102512), (128, 1708291), (208, 1051256), (331, 660608), (397, 550784), (416, 525628), (662, 330304), (794, 275392), (832, 262814), (1324, 165152), (1588, 137696), (1664, 131407), (2648, 82576), (3176, 68848), (4303, 50816), (5161, 42368), (5296, 41288), (6352, 34424), (8606, 25408), (10322, 21184), (10592, 20644), (12704, 17212)]