80894080

素因数分解:

$2^7\times 5^1\times {\mathrm{126397}}^1$

素因数の和:126416

約数の個数: 32

約数和(自身を含む): 193388940

約数和(自身を除く): 112494860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 126397, 252794, 505588, 631985, 1011176, 1263970, 2022352, 2527940, 4044704, 5055880, 8089408, 10111760, 16178816, 20223520, 40447040, 80894080]

約数ペア:

[(1, 80894080), (2, 40447040), (4, 20223520), (5, 16178816), (8, 10111760), (10, 8089408), (16, 5055880), (20, 4044704), (32, 2527940), (40, 2022352), (64, 1263970), (80, 1011176), (128, 631985), (160, 505588), (320, 252794), (640, 126397)]