18659690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{337}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 39533832

約数和(自身を除く): 20874142

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 113, 226, 245, 337, 490, 565, 674, 791, 1130, 1582, 1685, 2359, 3370, 3955, 4718, 5537, 7910, 11074, 11795, 16513, 23590, 27685, 33026, 38081, 55370, 76162, 82565, 165130, 190405, 266567, 380810, 533134, 1332835, 1865969, 2665670, 3731938, 9329845, 18659690]

約数ペア:

[(1, 18659690), (2, 9329845), (5, 3731938), (7, 2665670), (10, 1865969), (14, 1332835), (35, 533134), (49, 380810), (70, 266567), (98, 190405), (113, 165130), (226, 82565), (245, 76162), (337, 55370), (490, 38081), (565, 33026), (674, 27685), (791, 23590), (1130, 16513), (1582, 11795), (1685, 11074), (2359, 7910), (3370, 5537), (3955, 4718)]