81777710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61487}}^1$

素因数の和:61520

約数の個数: 32

約数和(自身を含む): 177085440

約数和(自身を除く): 95307730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 61487, 122974, 307435, 430409, 614870, 860818, 1168253, 2152045, 2336506, 4304090, 5841265, 8177771, 11682530, 16355542, 40888855, 81777710]

約数ペア:

[(1, 81777710), (2, 40888855), (5, 16355542), (7, 11682530), (10, 8177771), (14, 5841265), (19, 4304090), (35, 2336506), (38, 2152045), (70, 1168253), (95, 860818), (133, 614870), (190, 430409), (266, 307435), (665, 122974), (1330, 61487)]