16397960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3761}}^1$

素因数の和:3881

約数の個数: 32

約数和(自身を含む): 37243800

約数和(自身を除く): 20845840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 3761, 4360, 7522, 15044, 18805, 30088, 37610, 75220, 150440, 409949, 819898, 1639796, 2049745, 3279592, 4099490, 8198980, 16397960]

約数ペア:

[(1, 16397960), (2, 8198980), (4, 4099490), (5, 3279592), (8, 2049745), (10, 1639796), (20, 819898), (40, 409949), (109, 150440), (218, 75220), (436, 37610), (545, 30088), (872, 18805), (1090, 15044), (2180, 7522), (3761, 4360)]