20551168645

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{317}}^1\times {\mathrm{733}}^1$

素因数の和:1107

約数の個数: 72

約数和(自身を含む): 30414050424

約数和(自身を除く): 9862881779

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 317, 361, 665, 733, 931, 1585, 1805, 2219, 2527, 3665, 4655, 5131, 6023, 11095, 12635, 13927, 15533, 17689, 25655, 30115, 35917, 42161, 69635, 77665, 88445, 97489, 114437, 179585, 210805, 232361, 264613, 295127, 487445, 572185, 682423, 801059, 1161805, 1323065, 1475635, 1626527, 1852291, 3412115, 4005295, 4414859, 5607413, 8132635, 9261455, 11385689, 12966037, 22074295, 28037065, 30904013, 56928445, 64830185, 83882321, 154520065, 216328091, 419411605, 587176247, 1081640455, 2935881235, 4110233729, 20551168645]

約数ペア:

[(1, 20551168645), (5, 4110233729), (7, 2935881235), (19, 1081640455), (35, 587176247), (49, 419411605), (95, 216328091), (133, 154520065), (245, 83882321), (317, 64830185), (361, 56928445), (665, 30904013), (733, 28037065), (931, 22074295), (1585, 12966037), (1805, 11385689), (2219, 9261455), (2527, 8132635), (3665, 5607413), (4655, 4414859), (5131, 4005295), (6023, 3412115), (11095, 1852291), (12635, 1626527), (13927, 1475635), (15533, 1323065), (17689, 1161805), (25655, 801059), (30115, 682423), (35917, 572185), (42161, 487445), (69635, 295127), (77665, 264613), (88445, 232361), (97489, 210805), (114437, 179585)]