290659516

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1\times {\mathrm{499}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 592704000

約数和(自身を除く): 302044484

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 293, 497, 499, 586, 994, 998, 1172, 1988, 1996, 2051, 3493, 4102, 6986, 8204, 13972, 20803, 35429, 41606, 70858, 83212, 141716, 145621, 146207, 248003, 291242, 292414, 496006, 582484, 584828, 992012, 1023449, 2046898, 4093796, 10380697, 20761394, 41522788, 72664879, 145329758, 290659516]

約数ペア:

[(1, 290659516), (2, 145329758), (4, 72664879), (7, 41522788), (14, 20761394), (28, 10380697), (71, 4093796), (142, 2046898), (284, 1023449), (293, 992012), (497, 584828), (499, 582484), (586, 496006), (994, 292414), (998, 291242), (1172, 248003), (1988, 146207), (1996, 145621), (2051, 141716), (3493, 83212), (4102, 70858), (6986, 41606), (8204, 35429), (13972, 20803)]