20890508704

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{119851}}^1$

素因数の和:120293

約数の個数: 48

約数和(自身を含む): 44397974880

約数和(自身を除く): 23507466176

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 419, 838, 1676, 3352, 5447, 6704, 10894, 13408, 21788, 43576, 87152, 119851, 174304, 239702, 479404, 958808, 1558063, 1917616, 3116126, 3835232, 6232252, 12464504, 24929008, 49858016, 50217569, 100435138, 200870276, 401740552, 652828397, 803481104, 1305656794, 1606962208, 2611313588, 5222627176, 10445254352, 20890508704]

約数ペア:

[(1, 20890508704), (2, 10445254352), (4, 5222627176), (8, 2611313588), (13, 1606962208), (16, 1305656794), (26, 803481104), (32, 652828397), (52, 401740552), (104, 200870276), (208, 100435138), (416, 50217569), (419, 49858016), (838, 24929008), (1676, 12464504), (3352, 6232252), (5447, 3835232), (6704, 3116126), (10894, 1917616), (13408, 1558063), (21788, 958808), (43576, 479404), (87152, 239702), (119851, 174304)]