257856768

素因数分解:

$2^8\times 3^2\times {\mathrm{13}}^1\times {\mathrm{8609}}^1$

素因数の和:8644

約数の個数: 108

約数和(自身を含む): 800747220

約数和(自身を除く): 542890452

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 128, 144, 156, 192, 208, 234, 256, 288, 312, 384, 416, 468, 576, 624, 768, 832, 936, 1152, 1248, 1664, 1872, 2304, 2496, 3328, 3744, 4992, 7488, 8609, 9984, 14976, 17218, 25827, 29952, 34436, 51654, 68872, 77481, 103308, 111917, 137744, 154962, 206616, 223834, 275488, 309924, 335751, 413232, 447668, 550976, 619848, 671502, 826464, 895336, 1007253, 1101952, 1239696, 1343004, 1652928, 1790672, 2014506, 2203904, 2479392, 2686008, 3305856, 3581344, 4029012, 4958784, 5372016, 6611712, 7162688, 8058024, 9917568, 10744032, 14325376, 16116048, 19835136, 21488064, 28650752, 32232096, 42976128, 64464192, 85952256, 128928384, 257856768]

約数ペア:

[(1, 257856768), (2, 128928384), (3, 85952256), (4, 64464192), (6, 42976128), (8, 32232096), (9, 28650752), (12, 21488064), (13, 19835136), (16, 16116048), (18, 14325376), (24, 10744032), (26, 9917568), (32, 8058024), (36, 7162688), (39, 6611712), (48, 5372016), (52, 4958784), (64, 4029012), (72, 3581344), (78, 3305856), (96, 2686008), (104, 2479392), (117, 2203904), (128, 2014506), (144, 1790672), (156, 1652928), (192, 1343004), (208, 1239696), (234, 1101952), (256, 1007253), (288, 895336), (312, 826464), (384, 671502), (416, 619848), (468, 550976), (576, 447668), (624, 413232), (768, 335751), (832, 309924), (936, 275488), (1152, 223834), (1248, 206616), (1664, 154962), (1872, 137744), (2304, 111917), (2496, 103308), (3328, 77481), (3744, 68872), (4992, 51654), (7488, 34436), (8609, 29952), (9984, 25827), (14976, 17218)]