20123790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7537}}^1$

素因数の和:7636

約数の個数: 32

約数和(自身を含む): 48846240

約数和(自身を除く): 28722450

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 7537, 15074, 22611, 37685, 45222, 75370, 113055, 226110, 670793, 1341586, 2012379, 3353965, 4024758, 6707930, 10061895, 20123790]

約数ペア:

[(1, 20123790), (2, 10061895), (3, 6707930), (5, 4024758), (6, 3353965), (10, 2012379), (15, 1341586), (30, 670793), (89, 226110), (178, 113055), (267, 75370), (445, 45222), (534, 37685), (890, 22611), (1335, 15074), (2670, 7537)]