20840676816

素因数分解:

$2^4\times 3^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1\times {\mathrm{10589}}^1$

素因数の和:11044

約数の個数: 80

約数和(自身を含む): 54427855680

約数和(自身を除く): 33587178864

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 131, 262, 313, 393, 524, 626, 786, 939, 1048, 1252, 1572, 1878, 2096, 2504, 3144, 3756, 5008, 6288, 7512, 10589, 15024, 21178, 31767, 41003, 42356, 63534, 82006, 84712, 123009, 127068, 164012, 169424, 246018, 254136, 328024, 492036, 508272, 656048, 984072, 1387159, 1968144, 2774318, 3314357, 4161477, 5548636, 6628714, 8322954, 9943071, 11097272, 13257428, 16645908, 19886142, 22194544, 26514856, 33291816, 39772284, 53029712, 66583632, 79544568, 159089136, 434180767, 868361534, 1302542301, 1736723068, 2605084602, 3473446136, 5210169204, 6946892272, 10420338408, 20840676816]

約数ペア:

[(1, 20840676816), (2, 10420338408), (3, 6946892272), (4, 5210169204), (6, 3473446136), (8, 2605084602), (12, 1736723068), (16, 1302542301), (24, 868361534), (48, 434180767), (131, 159089136), (262, 79544568), (313, 66583632), (393, 53029712), (524, 39772284), (626, 33291816), (786, 26514856), (939, 22194544), (1048, 19886142), (1252, 16645908), (1572, 13257428), (1878, 11097272), (2096, 9943071), (2504, 8322954), (3144, 6628714), (3756, 5548636), (5008, 4161477), (6288, 3314357), (7512, 2774318), (10589, 1968144), (15024, 1387159), (21178, 984072), (31767, 656048), (41003, 508272), (42356, 492036), (63534, 328024), (82006, 254136), (84712, 246018), (123009, 169424), (127068, 164012)]