78123005

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{3823}}^1$

素因数の和:3956

約数の個数: 16

約数和(自身を含む): 96731904

約数和(自身を除く): 18608899

約数列:

[1, 5, 61, 67, 305, 335, 3823, 4087, 19115, 20435, 233203, 256141, 1166015, 1280705, 15624601, 78123005]

約数ペア:

[(1, 78123005), (5, 15624601), (61, 1280705), (67, 1166015), (305, 256141), (335, 233203), (3823, 20435), (4087, 19115)]