128039828

素因数分解:

$2^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{15607}}^1$

素因数の和:15911

約数の個数: 24

約数和(自身を含む): 256970112

約数和(自身を除く): 128930284

約数列:

[1, 2, 4, 7, 14, 28, 293, 586, 1172, 2051, 4102, 8204, 15607, 31214, 62428, 109249, 218498, 436996, 4572851, 9145702, 18291404, 32009957, 64019914, 128039828]

約数ペア:

[(1, 128039828), (2, 64019914), (4, 32009957), (7, 18291404), (14, 9145702), (28, 4572851), (293, 436996), (586, 218498), (1172, 109249), (2051, 62428), (4102, 31214), (8204, 15607)]