202388620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{206519}}^1$

素因数の和:206542

約数の個数: 36

約数和(自身を含む): 494408880

約数和(自身を除く): 292020260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 206519, 413038, 826076, 1032595, 1445633, 2065190, 2891266, 4130380, 5782532, 7228165, 10119431, 14456330, 20238862, 28912660, 40477724, 50597155, 101194310, 202388620]

約数ペア:

[(1, 202388620), (2, 101194310), (4, 50597155), (5, 40477724), (7, 28912660), (10, 20238862), (14, 14456330), (20, 10119431), (28, 7228165), (35, 5782532), (49, 4130380), (70, 2891266), (98, 2065190), (140, 1445633), (196, 1032595), (245, 826076), (490, 413038), (980, 206519)]