78455120

素因数分解:

$2^4\times 5^1\times {\mathrm{980689}}^1$

素因数の和:980702

約数の個数: 20

約数和(自身を含む): 182408340

約数和(自身を除く): 103953220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 980689, 1961378, 3922756, 4903445, 7845512, 9806890, 15691024, 19613780, 39227560, 78455120]

約数ペア:

[(1, 78455120), (2, 39227560), (4, 19613780), (5, 15691024), (8, 9806890), (10, 7845512), (16, 4903445), (20, 3922756), (40, 1961378), (80, 980689)]