78410480

素因数分解:

$2^4\times 5^1\times {\mathrm{980131}}^1$

素因数の和:980144

約数の個数: 20

約数和(自身を含む): 182304552

約数和(自身を除く): 103894072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 980131, 1960262, 3920524, 4900655, 7841048, 9801310, 15682096, 19602620, 39205240, 78410480]

約数ペア:

[(1, 78410480), (2, 39205240), (4, 19602620), (5, 15682096), (8, 9801310), (10, 7841048), (16, 4900655), (20, 3920524), (40, 1960262), (80, 980131)]