81954160

素因数分解:

$2^4\times 5^1\times {\mathrm{1024427}}^1$

素因数の和:1024440

約数の個数: 20

約数和(自身を含む): 190543608

約数和(自身を除く): 108589448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1024427, 2048854, 4097708, 5122135, 8195416, 10244270, 16390832, 20488540, 40977080, 81954160]

約数ペア:

[(1, 81954160), (2, 40977080), (4, 20488540), (5, 16390832), (8, 10244270), (10, 8195416), (16, 5122135), (20, 4097708), (40, 2048854), (80, 1024427)]