20687564888

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1\times {\mathrm{919}}^1$

素因数の和:1432

約数の個数: 64

約数和(自身を含む): 39850425600

約数和(自身を除く): 19162860712

約数列:

[1, 2, 4, 8, 61, 122, 163, 244, 283, 326, 488, 566, 652, 919, 1132, 1304, 1838, 2264, 3676, 7352, 9943, 17263, 19886, 34526, 39772, 46129, 56059, 69052, 79544, 92258, 112118, 138104, 149797, 184516, 224236, 260077, 299594, 369032, 448472, 520154, 599188, 1040308, 1198376, 2080616, 2813869, 5627738, 9137617, 11255476, 15864697, 18275234, 22510952, 31729394, 36550468, 42392551, 63458788, 73100936, 84785102, 126917576, 169570204, 339140408, 2585945611, 5171891222, 10343782444, 20687564888]

約数ペア:

[(1, 20687564888), (2, 10343782444), (4, 5171891222), (8, 2585945611), (61, 339140408), (122, 169570204), (163, 126917576), (244, 84785102), (283, 73100936), (326, 63458788), (488, 42392551), (566, 36550468), (652, 31729394), (919, 22510952), (1132, 18275234), (1304, 15864697), (1838, 11255476), (2264, 9137617), (3676, 5627738), (7352, 2813869), (9943, 2080616), (17263, 1198376), (19886, 1040308), (34526, 599188), (39772, 520154), (46129, 448472), (56059, 369032), (69052, 299594), (79544, 260077), (92258, 224236), (112118, 184516), (138104, 149797)]