128456212

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{406507}}^1$

素因数の和:406590

約数の個数: 12

約数和(自身を含む): 227644480

約数和(自身を除く): 99188268

約数列:

[1, 2, 4, 79, 158, 316, 406507, 813014, 1626028, 32114053, 64228106, 128456212]

約数ペア:

[(1, 128456212), (2, 64228106), (4, 32114053), (79, 1626028), (158, 813014), (316, 406507)]