20680930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1338

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 18976670

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 445, 890, 1223, 1691, 2446, 3382, 6115, 8455, 12230, 16910, 23237, 46474, 108847, 116185, 217694, 232370, 544235, 1088470, 2068093, 4136186, 10340465, 20680930]

約数ペア:

[(1, 20680930), (2, 10340465), (5, 4136186), (10, 2068093), (19, 1088470), (38, 544235), (89, 232370), (95, 217694), (178, 116185), (190, 108847), (445, 46474), (890, 23237), (1223, 16910), (1691, 12230), (2446, 8455), (3382, 6115)]