20168560

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4273}}^1$

素因数の和:4345

約数の個数: 40

約数和(自身を含む): 47697840

約数和(自身を除く): 27529280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4273, 4720, 8546, 17092, 21365, 34184, 42730, 68368, 85460, 170920, 252107, 341840, 504214, 1008428, 1260535, 2016856, 2521070, 4033712, 5042140, 10084280, 20168560]

約数ペア:

[(1, 20168560), (2, 10084280), (4, 5042140), (5, 4033712), (8, 2521070), (10, 2016856), (16, 1260535), (20, 1008428), (40, 504214), (59, 341840), (80, 252107), (118, 170920), (236, 85460), (295, 68368), (472, 42730), (590, 34184), (944, 21365), (1180, 17092), (2360, 8546), (4273, 4720)]