20520144

素因数分解:

$2^4\times 3^2\times {\mathrm{142501}}^1$

素因数の和:142515

約数の個数: 30

約数和(自身を含む): 57428306

約数和(自身を除く): 36908162

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 142501, 285002, 427503, 570004, 855006, 1140008, 1282509, 1710012, 2280016, 2565018, 3420024, 5130036, 6840048, 10260072, 20520144]

約数ペア:

[(1, 20520144), (2, 10260072), (3, 6840048), (4, 5130036), (6, 3420024), (8, 2565018), (9, 2280016), (12, 1710012), (16, 1282509), (18, 1140008), (24, 855006), (36, 570004), (48, 427503), (72, 285002), (144, 142501)]