12663920

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{509}}^1$

素因数の和:833

約数の個数: 40

約数和(自身を含む): 29596320

約数和(自身を除く): 16932400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 509, 622, 1018, 1244, 1555, 2036, 2488, 2545, 3110, 4072, 4976, 5090, 6220, 8144, 10180, 12440, 20360, 24880, 40720, 158299, 316598, 633196, 791495, 1266392, 1582990, 2532784, 3165980, 6331960, 12663920]

約数ペア:

[(1, 12663920), (2, 6331960), (4, 3165980), (5, 2532784), (8, 1582990), (10, 1266392), (16, 791495), (20, 633196), (40, 316598), (80, 158299), (311, 40720), (509, 24880), (622, 20360), (1018, 12440), (1244, 10180), (1555, 8144), (2036, 6220), (2488, 5090), (2545, 4976), (3110, 4072)]