219614975

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{4751}}^1$

素因数の和:4847

約数の個数: 18

約数和(自身を含む): 278861616

約数和(自身を除く): 59246641

約数列:

[1, 5, 25, 43, 215, 1075, 1849, 4751, 9245, 23755, 46225, 118775, 204293, 1021465, 5107325, 8784599, 43922995, 219614975]

約数ペア:

[(1, 219614975), (5, 43922995), (25, 8784599), (43, 5107325), (215, 1021465), (1075, 204293), (1849, 118775), (4751, 46225), (9245, 23755)]