281489968

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{27361}}^1$

素因数の和:28012

約数の個数: 20

約数和(自身を含む): 546254968

約数和(自身を除く): 264765000

約数列:

[1, 2, 4, 8, 16, 643, 1286, 2572, 5144, 10288, 27361, 54722, 109444, 218888, 437776, 17593123, 35186246, 70372492, 140744984, 281489968]

約数ペア:

[(1, 281489968), (2, 140744984), (4, 70372492), (8, 35186246), (16, 17593123), (643, 437776), (1286, 218888), (2572, 109444), (5144, 54722), (10288, 27361)]