138819128

素因数分解:

$2^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 304128000

約数和(自身を除く): 165308872

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 127, 131, 149, 254, 262, 298, 508, 524, 596, 889, 917, 1016, 1043, 1048, 1192, 1778, 1834, 2086, 3556, 3668, 4172, 7112, 7336, 8344, 16637, 18923, 19519, 33274, 37846, 39038, 66548, 75692, 78076, 116459, 132461, 133096, 136633, 151384, 156152, 232918, 264922, 273266, 465836, 529844, 546532, 931672, 1059688, 1093064, 2478913, 4957826, 9915652, 17352391, 19831304, 34704782, 69409564, 138819128]

約数ペア:

[(1, 138819128), (2, 69409564), (4, 34704782), (7, 19831304), (8, 17352391), (14, 9915652), (28, 4957826), (56, 2478913), (127, 1093064), (131, 1059688), (149, 931672), (254, 546532), (262, 529844), (298, 465836), (508, 273266), (524, 264922), (596, 232918), (889, 156152), (917, 151384), (1016, 136633), (1043, 133096), (1048, 132461), (1192, 116459), (1778, 78076), (1834, 75692), (2086, 66548), (3556, 39038), (3668, 37846), (4172, 33274), (7112, 19519), (7336, 18923), (8344, 16637)]