20565673720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1051}}^1\times {\mathrm{25747}}^1$

素因数の和:26828

約数の個数: 64

約数和(自身を含む): 48756412800

約数和(自身を除く): 28190739080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1051, 2102, 4204, 5255, 8408, 10510, 19969, 21020, 25747, 39938, 42040, 51494, 79876, 99845, 102988, 128735, 159752, 199690, 205976, 257470, 399380, 489193, 514940, 798760, 978386, 1029880, 1956772, 2445965, 3913544, 4891930, 9783860, 19567720, 27060097, 54120194, 108240388, 135300485, 216480776, 270600970, 514141843, 541201940, 1028283686, 1082403880, 2056567372, 2570709215, 4113134744, 5141418430, 10282836860, 20565673720]

約数ペア:

[(1, 20565673720), (2, 10282836860), (4, 5141418430), (5, 4113134744), (8, 2570709215), (10, 2056567372), (19, 1082403880), (20, 1028283686), (38, 541201940), (40, 514141843), (76, 270600970), (95, 216480776), (152, 135300485), (190, 108240388), (380, 54120194), (760, 27060097), (1051, 19567720), (2102, 9783860), (4204, 4891930), (5255, 3913544), (8408, 2445965), (10510, 1956772), (19969, 1029880), (21020, 978386), (25747, 798760), (39938, 514940), (42040, 489193), (51494, 399380), (79876, 257470), (99845, 205976), (102988, 199690), (128735, 159752)]