208399996

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{37781}}^1$

素因数の和:37989

約数の個数: 24

約数和(自身を含む): 418926816

約数和(自身を除く): 210526820

約数列:

[1, 2, 4, 7, 14, 28, 197, 394, 788, 1379, 2758, 5516, 37781, 75562, 151124, 264467, 528934, 1057868, 7442857, 14885714, 29771428, 52099999, 104199998, 208399996]

約数ペア:

[(1, 208399996), (2, 104199998), (4, 52099999), (7, 29771428), (14, 14885714), (28, 7442857), (197, 1057868), (394, 528934), (788, 264467), (1379, 151124), (2758, 75562), (5516, 37781)]