80381960

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{20717}}^1$

素因数の和:20825

約数の個数: 32

約数和(自身を含む): 182732760

約数和(自身を除く): 102350800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 20717, 41434, 82868, 103585, 165736, 207170, 414340, 828680, 2009549, 4019098, 8038196, 10047745, 16076392, 20095490, 40190980, 80381960]

約数ペア:

[(1, 80381960), (2, 40190980), (4, 20095490), (5, 16076392), (8, 10047745), (10, 8038196), (20, 4019098), (40, 2009549), (97, 828680), (194, 414340), (388, 207170), (485, 165736), (776, 103585), (970, 82868), (1940, 41434), (3880, 20717)]