20509241.000000000

素因数分解:

$2^5\times 3^2\times {\mathrm{53}}^1\times {\mathrm{9473}}^1$

素因数の和:9542

約数の個数: 72

約数和(自身を含む): 418997124

約数和(自身を除く): 274401252

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 53, 72, 96, 106, 144, 159, 212, 288, 318, 424, 477, 636, 848, 954, 1272, 1696, 1908, 2544, 3816, 5088, 7632, 9473, 15264, 18946, 28419, 37892, 56838, 75784, 85257, 113676, 151568, 170514, 227352, 303136, 341028, 454704, 502069, 682056, 909408, 1004138, 1364112, 1506207, 2008276, 2728224, 3012414, 4016552, 4518621, 6024828, 8033104, 9037242, 12049656, 16066208, 18074484, 24099312, 36148968, 48198624, 72297936, 144595872]

約数ペア:

[(1, 144595872), (2, 72297936), (3, 48198624), (4, 36148968), (6, 24099312), (8, 18074484), (9, 16066208), (12, 12049656), (16, 9037242), (18, 8033104), (24, 6024828), (32, 4518621), (36, 4016552), (48, 3012414), (53, 2728224), (72, 2008276), (96, 1506207), (106, 1364112), (144, 1004138), (159, 909408), (212, 682056), (288, 502069), (318, 454704), (424, 341028), (477, 303136), (636, 227352), (848, 170514), (954, 151568), (1272, 113676), (1696, 85257), (1908, 75784), (2544, 56838), (3816, 37892), (5088, 28419), (7632, 18946), (9473, 15264)]