208035760

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{25747}}^1$

素因数の和:25861

約数の個数: 40

約数和(自身を含む): 488491056

約数和(自身を除く): 280455296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 25747, 51494, 102988, 128735, 205976, 257470, 411952, 514940, 1029880, 2059760, 2600447, 5200894, 10401788, 13002235, 20803576, 26004470, 41607152, 52008940, 104017880, 208035760]

約数ペア:

[(1, 208035760), (2, 104017880), (4, 52008940), (5, 41607152), (8, 26004470), (10, 20803576), (16, 13002235), (20, 10401788), (40, 5200894), (80, 2600447), (101, 2059760), (202, 1029880), (404, 514940), (505, 411952), (808, 257470), (1010, 205976), (1616, 128735), (2020, 102988), (4040, 51494), (8080, 25747)]