129009280

素因数分解:

$2^7\times 5^1\times {\mathrm{201577}}^1$

素因数の和:201596

約数の個数: 32

約数和(自身を含む): 308414340

約数和(自身を除く): 179405060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 201577, 403154, 806308, 1007885, 1612616, 2015770, 3225232, 4031540, 6450464, 8063080, 12900928, 16126160, 25801856, 32252320, 64504640, 129009280]

約数ペア:

[(1, 129009280), (2, 64504640), (4, 32252320), (5, 25801856), (8, 16126160), (10, 12900928), (16, 8063080), (20, 6450464), (32, 4031540), (40, 3225232), (64, 2015770), (80, 1612616), (128, 1007885), (160, 806308), (320, 403154), (640, 201577)]