209304880

素因数分解:

$2^4\times 5^1\times {\mathrm{1301}}^1\times {\mathrm{2011}}^1$

素因数の和:3325

約数の個数: 40

約数和(自身を含む): 487250064

約数和(自身を除く): 277945184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1301, 2011, 2602, 4022, 5204, 6505, 8044, 10055, 10408, 13010, 16088, 20110, 20816, 26020, 32176, 40220, 52040, 80440, 104080, 160880, 2616311, 5232622, 10465244, 13081555, 20930488, 26163110, 41860976, 52326220, 104652440, 209304880]

約数ペア:

[(1, 209304880), (2, 104652440), (4, 52326220), (5, 41860976), (8, 26163110), (10, 20930488), (16, 13081555), (20, 10465244), (40, 5232622), (80, 2616311), (1301, 160880), (2011, 104080), (2602, 80440), (4022, 52040), (5204, 40220), (6505, 32176), (8044, 26020), (10055, 20816), (10408, 20110), (13010, 16088)]