199348660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{203417}}^1$

素因数の和:203440

約数の個数: 36

約数和(自身を含む): 486982692

約数和(自身を除く): 287634032

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 203417, 406834, 813668, 1017085, 1423919, 2034170, 2847838, 4068340, 5695676, 7119595, 9967433, 14239190, 19934866, 28478380, 39869732, 49837165, 99674330, 199348660]

約数ペア:

[(1, 199348660), (2, 99674330), (4, 49837165), (5, 39869732), (7, 28478380), (10, 19934866), (14, 14239190), (20, 9967433), (28, 7119595), (35, 5695676), (49, 4068340), (70, 2847838), (98, 2034170), (140, 1423919), (196, 1017085), (245, 813668), (490, 406834), (980, 203417)]