20512030168

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{36691}}^1$

素因数の和:36920

約数の個数: 64

約数和(自身を含む): 44911008000

約数和(自身を除く): 24398977832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 149, 268, 298, 469, 536, 596, 938, 1043, 1192, 1876, 2086, 3752, 4172, 8344, 9983, 19966, 36691, 39932, 69881, 73382, 79864, 139762, 146764, 256837, 279524, 293528, 513674, 559048, 1027348, 2054696, 2458297, 4916594, 5466959, 9833188, 10933918, 17208079, 19666376, 21867836, 34416158, 38268713, 43735672, 68832316, 76537426, 137664632, 153074852, 306149704, 366286253, 732572506, 1465145012, 2564003771, 2930290024, 5128007542, 10256015084, 20512030168]

約数ペア:

[(1, 20512030168), (2, 10256015084), (4, 5128007542), (7, 2930290024), (8, 2564003771), (14, 1465145012), (28, 732572506), (56, 366286253), (67, 306149704), (134, 153074852), (149, 137664632), (268, 76537426), (298, 68832316), (469, 43735672), (536, 38268713), (596, 34416158), (938, 21867836), (1043, 19666376), (1192, 17208079), (1876, 10933918), (2086, 9833188), (3752, 5466959), (4172, 4916594), (8344, 2458297), (9983, 2054696), (19966, 1027348), (36691, 559048), (39932, 513674), (69881, 293528), (73382, 279524), (79864, 256837), (139762, 146764)]