80990080

素因数分解:

$2^7\times 5^1\times {\mathrm{126547}}^1$

素因数の和:126566

約数の個数: 32

約数和(自身を含む): 193618440

約数和(自身を除く): 112628360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 126547, 253094, 506188, 632735, 1012376, 1265470, 2024752, 2530940, 4049504, 5061880, 8099008, 10123760, 16198016, 20247520, 40495040, 80990080]

約数ペア:

[(1, 80990080), (2, 40495040), (4, 20247520), (5, 16198016), (8, 10123760), (10, 8099008), (16, 5061880), (20, 4049504), (32, 2530940), (40, 2024752), (64, 1265470), (80, 1012376), (128, 632735), (160, 506188), (320, 253094), (640, 126547)]