20178485704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1433}}^1\times {\mathrm{1907}}^1$

素因数の和:3430

約数の個数: 64

約数和(自身を含む): 41369408640

約数和(自身を除く): 21190922936

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1433, 1846, 1907, 2866, 3692, 3814, 5732, 7384, 7628, 11464, 15256, 18629, 24791, 37258, 49582, 74516, 99164, 101743, 135397, 149032, 198328, 203486, 270794, 406972, 541588, 813944, 1083176, 1322659, 1760161, 2645318, 2732731, 3520322, 5290636, 5465462, 7040644, 10581272, 10930924, 14081288, 21861848, 35525503, 71051006, 142102012, 194023901, 284204024, 388047802, 776095604, 1552191208, 2522310713, 5044621426, 10089242852, 20178485704]

約数ペア:

[(1, 20178485704), (2, 10089242852), (4, 5044621426), (8, 2522310713), (13, 1552191208), (26, 776095604), (52, 388047802), (71, 284204024), (104, 194023901), (142, 142102012), (284, 71051006), (568, 35525503), (923, 21861848), (1433, 14081288), (1846, 10930924), (1907, 10581272), (2866, 7040644), (3692, 5465462), (3814, 5290636), (5732, 3520322), (7384, 2732731), (7628, 2645318), (11464, 1760161), (15256, 1322659), (18629, 1083176), (24791, 813944), (37258, 541588), (49582, 406972), (74516, 270794), (99164, 203486), (101743, 198328), (135397, 149032)]