81455545

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{1669}}^1$

素因数の和:1944

約数の個数: 16

約数和(自身を含む): 100520640

約数和(自身を除く): 19065095

約数列:

[1, 5, 43, 215, 227, 1135, 1669, 8345, 9761, 48805, 71767, 358835, 378863, 1894315, 16291109, 81455545]

約数ペア:

[(1, 81455545), (5, 16291109), (43, 1894315), (215, 378863), (227, 358835), (1135, 71767), (1669, 48805), (8345, 9761)]