19965580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52541}}^1$

素因数の和:52569

約数の個数: 24

約数和(自身を含む): 44135280

約数和(自身を除く): 24169700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 52541, 105082, 210164, 262705, 525410, 998279, 1050820, 1996558, 3993116, 4991395, 9982790, 19965580]

約数ペア:

[(1, 19965580), (2, 9982790), (4, 4991395), (5, 3993116), (10, 1996558), (19, 1050820), (20, 998279), (38, 525410), (76, 262705), (95, 210164), (190, 105082), (380, 52541)]