128520976

素因数分解:

$2^4\times {\mathrm{809}}^1\times {\mathrm{9929}}^1$

素因数の和:10746

約数の個数: 20

約数和(自身を含む): 249342300

約数和(自身を除く): 120821324

約数列:

[1, 2, 4, 8, 16, 809, 1618, 3236, 6472, 9929, 12944, 19858, 39716, 79432, 158864, 8032561, 16065122, 32130244, 64260488, 128520976]

約数ペア:

[(1, 128520976), (2, 64260488), (4, 32130244), (8, 16065122), (16, 8032561), (809, 158864), (1618, 79432), (3236, 39716), (6472, 19858), (9929, 12944)]