79992560

素因数分解:

$2^4\times 5^1\times {\mathrm{999907}}^1$

素因数の和:999920

約数の個数: 20

約数和(自身を含む): 185982888

約数和(自身を除く): 105990328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 999907, 1999814, 3999628, 4999535, 7999256, 9999070, 15998512, 19998140, 39996280, 79992560]

約数ペア:

[(1, 79992560), (2, 39996280), (4, 19998140), (5, 15998512), (8, 9999070), (10, 7999256), (16, 4999535), (20, 3999628), (40, 1999814), (80, 999907)]