256671128

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{106591}}^1$

素因数の和:106647

約数の個数: 32

約数和(自身を含む): 562805760

約数和(自身を除く): 306134632

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 106591, 213182, 426364, 746137, 852728, 1492274, 2984548, 4583413, 5969096, 9166826, 18333652, 32083891, 36667304, 64167782, 128335564, 256671128]

約数ペア:

[(1, 256671128), (2, 128335564), (4, 64167782), (7, 36667304), (8, 32083891), (14, 18333652), (28, 9166826), (43, 5969096), (56, 4583413), (86, 2984548), (172, 1492274), (301, 852728), (344, 746137), (602, 426364), (1204, 213182), (2408, 106591)]