257831265636

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{20880407}}^1$

素因数の和:20880438

約数の個数: 72

約数和(自身を含む): 760046851200

約数和(自身を除く): 502215585564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 343, 441, 588, 686, 882, 1029, 1372, 1764, 2058, 3087, 4116, 6174, 12348, 20880407, 41760814, 62641221, 83521628, 125282442, 146162849, 187923663, 250564884, 292325698, 375847326, 438488547, 584651396, 751694652, 876977094, 1023139943, 1315465641, 1753954188, 2046279886, 2630931282, 3069419829, 4092559772, 5261862564, 6138839658, 7161979601, 9208259487, 12277679316, 14323959202, 18416518974, 21485938803, 28647918404, 36833037948, 42971877606, 64457816409, 85943755212, 128915632818, 257831265636]

約数ペア:

[(1, 257831265636), (2, 128915632818), (3, 85943755212), (4, 64457816409), (6, 42971877606), (7, 36833037948), (9, 28647918404), (12, 21485938803), (14, 18416518974), (18, 14323959202), (21, 12277679316), (28, 9208259487), (36, 7161979601), (42, 6138839658), (49, 5261862564), (63, 4092559772), (84, 3069419829), (98, 2630931282), (126, 2046279886), (147, 1753954188), (196, 1315465641), (252, 1023139943), (294, 876977094), (343, 751694652), (441, 584651396), (588, 438488547), (686, 375847326), (882, 292325698), (1029, 250564884), (1372, 187923663), (1764, 146162849), (2058, 125282442), (3087, 83521628), (4116, 62641221), (6174, 41760814), (12348, 20880407)]