256515824

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{517169}}^1$

素因数の和:517208

約数の個数: 20

約数和(自身を含む): 513032640

約数和(自身を除く): 256516816

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 517169, 1034338, 2068676, 4137352, 8274704, 16032239, 32064478, 64128956, 128257912, 256515824]

約数ペア:

[(1, 256515824), (2, 128257912), (4, 64128956), (8, 32064478), (16, 16032239), (31, 8274704), (62, 4137352), (124, 2068676), (248, 1034338), (496, 517169)]