28750789984

素因数分解:

$2^5\times 7^2\times {\mathrm{71}}^1\times {\mathrm{258253}}^1$

素因数の和:258348

約数の個数: 72

約数和(自身を含む): 66772088208

約数和(自身を除く): 38021298224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 71, 98, 112, 142, 196, 224, 284, 392, 497, 568, 784, 994, 1136, 1568, 1988, 2272, 3479, 3976, 6958, 7952, 13916, 15904, 27832, 55664, 111328, 258253, 516506, 1033012, 1807771, 2066024, 3615542, 4132048, 7231084, 8264096, 12654397, 14462168, 18335963, 25308794, 28924336, 36671926, 50617588, 57848672, 73343852, 101235176, 128351741, 146687704, 202470352, 256703482, 293375408, 404940704, 513406964, 586750816, 898462187, 1026813928, 1796924374, 2053627856, 3593848748, 4107255712, 7187697496, 14375394992, 28750789984]

約数ペア:

[(1, 28750789984), (2, 14375394992), (4, 7187697496), (7, 4107255712), (8, 3593848748), (14, 2053627856), (16, 1796924374), (28, 1026813928), (32, 898462187), (49, 586750816), (56, 513406964), (71, 404940704), (98, 293375408), (112, 256703482), (142, 202470352), (196, 146687704), (224, 128351741), (284, 101235176), (392, 73343852), (497, 57848672), (568, 50617588), (784, 36671926), (994, 28924336), (1136, 25308794), (1568, 18335963), (1988, 14462168), (2272, 12654397), (3479, 8264096), (3976, 7231084), (6958, 4132048), (7952, 3615542), (13916, 2066024), (15904, 1807771), (27832, 1033012), (55664, 516506), (111328, 258253)]