30517220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21491}}^1$

素因数の和:21571

約数の個数: 24

約数和(自身を含む): 64991808

約数和(自身を除く): 34474588

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 21491, 42982, 85964, 107455, 214910, 429820, 1525861, 3051722, 6103444, 7629305, 15258610, 30517220]

約数ペア:

[(1, 30517220), (2, 15258610), (4, 7629305), (5, 6103444), (10, 3051722), (20, 1525861), (71, 429820), (142, 214910), (284, 107455), (355, 85964), (710, 42982), (1420, 21491)]