20617232

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:447

約数の個数: 40

約数和(自身を含む): 41640192

約数和(自身を除く): 21022960

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 197, 211, 248, 394, 422, 496, 788, 844, 1576, 1688, 3152, 3376, 6107, 6541, 12214, 13082, 24428, 26164, 41567, 48856, 52328, 83134, 97712, 104656, 166268, 332536, 665072, 1288577, 2577154, 5154308, 10308616, 20617232]

約数ペア:

[(1, 20617232), (2, 10308616), (4, 5154308), (8, 2577154), (16, 1288577), (31, 665072), (62, 332536), (124, 166268), (197, 104656), (211, 97712), (248, 83134), (394, 52328), (422, 48856), (496, 41567), (788, 26164), (844, 24428), (1576, 13082), (1688, 12214), (3152, 6541), (3376, 6107)]