28554370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219649}}^1$

素因数の和:219669

約数の個数: 16

約数和(自身を含む): 55351800

約数和(自身を除く): 26797430

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 219649, 439298, 1098245, 2196490, 2855437, 5710874, 14277185, 28554370]

約数ペア:

[(1, 28554370), (2, 14277185), (5, 5710874), (10, 2855437), (13, 2196490), (26, 1098245), (65, 439298), (130, 219649)]