978178480

素因数分解:

$2^4\times 5^1\times {\mathrm{12227231}}^1$

素因数の和:12227244

約数の個数: 20

約数和(自身を含む): 2274265152

約数和(自身を除く): 1296086672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12227231, 24454462, 48908924, 61136155, 97817848, 122272310, 195635696, 244544620, 489089240, 978178480]

約数ペア:

[(1, 978178480), (2, 489089240), (4, 244544620), (5, 195635696), (8, 122272310), (10, 97817848), (16, 61136155), (20, 48908924), (40, 24454462), (80, 12227231)]