20155728796

素因数分解:

$2^2\times 7^2\times {\mathrm{137}}^2\times {\mathrm{5479}}^1$

素因数の和:5771

約数の個数: 54

約数和(自身を含む): 41340533640

約数和(自身を除く): 21184804844

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 137, 196, 274, 548, 959, 1918, 3836, 5479, 6713, 10958, 13426, 18769, 21916, 26852, 37538, 38353, 75076, 76706, 131383, 153412, 262766, 268471, 525532, 536942, 750623, 919681, 1073884, 1501246, 1839362, 3002492, 3678724, 5254361, 10508722, 21017444, 36780527, 73561054, 102835351, 147122108, 205670702, 411341404, 719847457, 1439694914, 2879389828, 5038932199, 10077864398, 20155728796]

約数ペア:

[(1, 20155728796), (2, 10077864398), (4, 5038932199), (7, 2879389828), (14, 1439694914), (28, 719847457), (49, 411341404), (98, 205670702), (137, 147122108), (196, 102835351), (274, 73561054), (548, 36780527), (959, 21017444), (1918, 10508722), (3836, 5254361), (5479, 3678724), (6713, 3002492), (10958, 1839362), (13426, 1501246), (18769, 1073884), (21916, 919681), (26852, 750623), (37538, 536942), (38353, 525532), (75076, 268471), (76706, 262766), (131383, 153412)]