15984040

素因数分解:

$2^3\times 5^1\times {\mathrm{399601}}^1$

素因数の和:399612

約数の個数: 16

約数和(自身を含む): 35964180

約数和(自身を除く): 19980140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 399601, 799202, 1598404, 1998005, 3196808, 3996010, 7992020, 15984040]

約数ペア:

[(1, 15984040), (2, 7992020), (4, 3996010), (5, 3196808), (8, 1998005), (10, 1598404), (20, 799202), (40, 399601)]