209121536

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2027}}^1$

素因数の和:2087

約数の個数: 72

約数和(自身を含む): 464265984

約数和(自身を除く): 255144448

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 806, 832, 992, 1612, 1664, 1984, 2027, 3224, 3328, 3968, 4054, 6448, 7936, 8108, 12896, 16216, 25792, 26351, 32432, 51584, 52702, 62837, 64864, 103168, 105404, 125674, 129728, 210808, 251348, 259456, 421616, 502696, 518912, 816881, 843232, 1005392, 1633762, 1686464, 2010784, 3267524, 3372928, 4021568, 6535048, 6745856, 8043136, 13070096, 16086272, 26140192, 52280384, 104560768, 209121536]

約数ペア:

[(1, 209121536), (2, 104560768), (4, 52280384), (8, 26140192), (13, 16086272), (16, 13070096), (26, 8043136), (31, 6745856), (32, 6535048), (52, 4021568), (62, 3372928), (64, 3267524), (104, 2010784), (124, 1686464), (128, 1633762), (208, 1005392), (248, 843232), (256, 816881), (403, 518912), (416, 502696), (496, 421616), (806, 259456), (832, 251348), (992, 210808), (1612, 129728), (1664, 125674), (1984, 105404), (2027, 103168), (3224, 64864), (3328, 62837), (3968, 52702), (4054, 51584), (6448, 32432), (7936, 26351), (8108, 25792), (12896, 16216)]