201489280

素因数分解:

$2^7\times 5^1\times {\mathrm{314827}}^1$

素因数の和:314846

約数の個数: 32

約数和(自身を含む): 481686840

約数和(自身を除く): 280197560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 314827, 629654, 1259308, 1574135, 2518616, 3148270, 5037232, 6296540, 10074464, 12593080, 20148928, 25186160, 40297856, 50372320, 100744640, 201489280]

約数ペア:

[(1, 201489280), (2, 100744640), (4, 50372320), (5, 40297856), (8, 25186160), (10, 20148928), (16, 12593080), (20, 10074464), (32, 6296540), (40, 5037232), (64, 3148270), (80, 2518616), (128, 1574135), (160, 1259308), (320, 629654), (640, 314827)]