256804688

素因数分解:

$2^4\times 7^2\times {\mathrm{327557}}^1$

素因数の和:327579

約数の個数: 30

約数和(自身を含む): 578794986

約数和(自身を除く): 321990298

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 327557, 655114, 1310228, 2292899, 2620456, 4585798, 5240912, 9171596, 16050293, 18343192, 32100586, 36686384, 64201172, 128402344, 256804688]

約数ペア:

[(1, 256804688), (2, 128402344), (4, 64201172), (7, 36686384), (8, 32100586), (14, 18343192), (16, 16050293), (28, 9171596), (49, 5240912), (56, 4585798), (98, 2620456), (112, 2292899), (196, 1310228), (392, 655114), (784, 327557)]