78412720

素因数分解:

$2^4\times 5^1\times {\mathrm{980159}}^1$

素因数の和:980172

約数の個数: 20

約数和(自身を含む): 182309760

約数和(自身を除く): 103897040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 980159, 1960318, 3920636, 4900795, 7841272, 9801590, 15682544, 19603180, 39206360, 78412720]

約数ペア:

[(1, 78412720), (2, 39206360), (4, 19603180), (5, 15682544), (8, 9801590), (10, 7841272), (16, 4900795), (20, 3920636), (40, 1960318), (80, 980159)]