205470080

素因数分解:

$2^7\times 5^1\times {\mathrm{321047}}^1$

素因数の和:321066

約数の個数: 32

約数和(自身を含む): 491203440

約数和(自身を除く): 285733360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 321047, 642094, 1284188, 1605235, 2568376, 3210470, 5136752, 6420940, 10273504, 12841880, 20547008, 25683760, 41094016, 51367520, 102735040, 205470080]

約数ペア:

[(1, 205470080), (2, 102735040), (4, 51367520), (5, 41094016), (8, 25683760), (10, 20547008), (16, 12841880), (20, 10273504), (32, 6420940), (40, 5136752), (64, 3210470), (80, 2568376), (128, 1605235), (160, 1284188), (320, 642094), (640, 321047)]