16955920

素因数分解:

$2^4\times 5^1\times {\mathrm{211949}}^1$

素因数の和:211962

約数の個数: 20

約数和(自身を含む): 39422700

約数和(自身を除く): 22466780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211949, 423898, 847796, 1059745, 1695592, 2119490, 3391184, 4238980, 8477960, 16955920]

約数ペア:

[(1, 16955920), (2, 8477960), (4, 4238980), (5, 3391184), (8, 2119490), (10, 1695592), (16, 1059745), (20, 847796), (40, 423898), (80, 211949)]