25662080

素因数分解:

$2^7\times 5^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 62111880

約数和(自身を除く): 36449800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 320, 397, 404, 505, 640, 794, 808, 1010, 1588, 1616, 1985, 2020, 3176, 3232, 3970, 4040, 6352, 6464, 7940, 8080, 12704, 12928, 15880, 16160, 25408, 31760, 32320, 40097, 50816, 63520, 64640, 80194, 127040, 160388, 200485, 254080, 320776, 400970, 641552, 801940, 1283104, 1603880, 2566208, 3207760, 5132416, 6415520, 12831040, 25662080]

約数ペア:

[(1, 25662080), (2, 12831040), (4, 6415520), (5, 5132416), (8, 3207760), (10, 2566208), (16, 1603880), (20, 1283104), (32, 801940), (40, 641552), (64, 400970), (80, 320776), (101, 254080), (128, 200485), (160, 160388), (202, 127040), (320, 80194), (397, 64640), (404, 63520), (505, 50816), (640, 40097), (794, 32320), (808, 31760), (1010, 25408), (1588, 16160), (1616, 15880), (1985, 12928), (2020, 12704), (3176, 8080), (3232, 7940), (3970, 6464), (4040, 6352)]