81402080

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26777}}^1$

素因数の和:26811

約数の個数: 48

約数和(自身を含む): 202441680

約数和(自身を除く): 121039600

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 26777, 53554, 107108, 133885, 214216, 267770, 428432, 508763, 535540, 856864, 1017526, 1071080, 2035052, 2142160, 2543815, 4070104, 4284320, 5087630, 8140208, 10175260, 16280416, 20350520, 40701040, 81402080]

約数ペア:

[(1, 81402080), (2, 40701040), (4, 20350520), (5, 16280416), (8, 10175260), (10, 8140208), (16, 5087630), (19, 4284320), (20, 4070104), (32, 2543815), (38, 2142160), (40, 2035052), (76, 1071080), (80, 1017526), (95, 856864), (152, 535540), (160, 508763), (190, 428432), (304, 267770), (380, 214216), (608, 133885), (760, 107108), (1520, 53554), (3040, 26777)]