261478798

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^3\times {\mathrm{389}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 482835600

約数和(自身を除く): 221356802

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 361, 389, 722, 778, 931, 1862, 2527, 2723, 5054, 5446, 6859, 7391, 13718, 14782, 17689, 19061, 35378, 38122, 48013, 51737, 96026, 103474, 140429, 280858, 336091, 362159, 672182, 724318, 983003, 1966006, 2668151, 5336302, 6881021, 13762042, 18677057, 37354114, 130739399, 261478798]

約数ペア:

[(1, 261478798), (2, 130739399), (7, 37354114), (14, 18677057), (19, 13762042), (38, 6881021), (49, 5336302), (98, 2668151), (133, 1966006), (266, 983003), (361, 724318), (389, 672182), (722, 362159), (778, 336091), (931, 280858), (1862, 140429), (2527, 103474), (2723, 96026), (5054, 51737), (5446, 48013), (6859, 38122), (7391, 35378), (13718, 19061), (14782, 17689)]