128045240

素因数分解:

$2^3\times 5^1\times {\mathrm{3201131}}^1$

素因数の和:3201142

約数の個数: 16

約数和(自身を含む): 288101880

約数和(自身を除く): 160056640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3201131, 6402262, 12804524, 16005655, 25609048, 32011310, 64022620, 128045240]

約数ペア:

[(1, 128045240), (2, 64022620), (4, 32011310), (5, 25609048), (8, 16005655), (10, 12804524), (20, 6402262), (40, 3201131)]