64438468

素因数分解:

$2^2\times {\mathrm{809}}^1\times {\mathrm{19913}}^1$

素因数の和:20726

約数の個数: 12

約数和(自身を含む): 112912380

約数和(自身を除く): 48473912

約数列:

[1, 2, 4, 809, 1618, 3236, 19913, 39826, 79652, 16109617, 32219234, 64438468]

約数ペア:

[(1, 64438468), (2, 32219234), (4, 16109617), (809, 79652), (1618, 39826), (3236, 19913)]