84690820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{733}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 183118320

約数和(自身を除く): 98427500

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 109, 212, 218, 265, 436, 530, 545, 733, 1060, 1090, 1466, 2180, 2932, 3665, 5777, 7330, 11554, 14660, 23108, 28885, 38849, 57770, 77698, 79897, 115540, 155396, 159794, 194245, 319588, 388490, 399485, 776980, 798970, 1597940, 4234541, 8469082, 16938164, 21172705, 42345410, 84690820]

約数ペア:

[(1, 84690820), (2, 42345410), (4, 21172705), (5, 16938164), (10, 8469082), (20, 4234541), (53, 1597940), (106, 798970), (109, 776980), (212, 399485), (218, 388490), (265, 319588), (436, 194245), (530, 159794), (545, 155396), (733, 115540), (1060, 79897), (1090, 77698), (1466, 57770), (2180, 38849), (2932, 28885), (3665, 23108), (5777, 14660), (7330, 11554)]