8198980

素因数分解:

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

素因数の和:3879

約数の個数: 24

約数和(自身を含む): 17380440

約数和(自身を除く): 9181460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 3761, 7522, 15044, 18805, 37610, 75220, 409949, 819898, 1639796, 2049745, 4099490, 8198980]

約数ペア:

[(1, 8198980), (2, 4099490), (4, 2049745), (5, 1639796), (10, 819898), (20, 409949), (109, 75220), (218, 37610), (436, 18805), (545, 15044), (1090, 7522), (2180, 3761)]