19979950

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9293}}^1$

素因数の和:9348

約数の個数: 24

約数和(自身を含む): 38031048

約数和(自身を除く): 18051098

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9293, 18586, 46465, 92930, 232325, 399599, 464650, 799198, 1997995, 3995990, 9989975, 19979950]

約数ペア:

[(1, 19979950), (2, 9989975), (5, 3995990), (10, 1997995), (25, 799198), (43, 464650), (50, 399599), (86, 232325), (215, 92930), (430, 46465), (1075, 18586), (2150, 9293)]