840028

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1579}}^1$

素因数の和:1609

約数の個数: 24

約数和(自身を含む): 1769600

約数和(自身を除く): 929572

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 1579, 3158, 6316, 11053, 22106, 30001, 44212, 60002, 120004, 210007, 420014, 840028]

約数ペア:

[(1, 840028), (2, 420014), (4, 210007), (7, 120004), (14, 60002), (19, 44212), (28, 30001), (38, 22106), (76, 11053), (133, 6316), (266, 3158), (532, 1579)]