207980656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{999907}}^1$

素因数の和:999928

約数の個数: 20

約数和(自身を含む): 433960072

約数和(自身を除く): 225979416

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 999907, 1999814, 3999628, 7999256, 12998791, 15998512, 25997582, 51995164, 103990328, 207980656]

約数ペア:

[(1, 207980656), (2, 103990328), (4, 51995164), (8, 25997582), (13, 15998512), (16, 12998791), (26, 7999256), (52, 3999628), (104, 1999814), (208, 999907)]