39690145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1999}}^1$

素因数の和:2053

約数の個数: 24

約数和(自身を含む): 54864000

約数和(自身を除く): 15173855

約数列:

[1, 5, 11, 19, 55, 95, 209, 361, 1045, 1805, 1999, 3971, 9995, 19855, 21989, 37981, 109945, 189905, 417791, 721639, 2088955, 3608195, 7938029, 39690145]

約数ペア:

[(1, 39690145), (5, 7938029), (11, 3608195), (19, 2088955), (55, 721639), (95, 417791), (209, 189905), (361, 109945), (1045, 37981), (1805, 21989), (1999, 19855), (3971, 9995)]