128409029

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{607}}^1\times {\mathrm{643}}^1$

素因数の和:1304

約数の個数: 16

約数和(自身を含む): 150355968

約数和(自身を除く): 21946939

約数列:

[1, 7, 47, 329, 607, 643, 4249, 4501, 28529, 30221, 199703, 211547, 390301, 2732107, 18344147, 128409029]

約数ペア:

[(1, 128409029), (7, 18344147), (47, 2732107), (329, 390301), (607, 211547), (643, 199703), (4249, 30221), (4501, 28529)]