40000016

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18797}}^1$

素因数の和:18831

約数の個数: 40

約数和(自身を含む): 93238080

約数和(自身を除く): 53238064

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 18797, 37594, 75188, 131579, 150376, 263158, 300752, 357143, 526316, 714286, 1052632, 1428572, 2105264, 2500001, 2857144, 5000002, 5714288, 10000004, 20000008, 40000016]

約数ペア:

[(1, 40000016), (2, 20000008), (4, 10000004), (7, 5714288), (8, 5000002), (14, 2857144), (16, 2500001), (19, 2105264), (28, 1428572), (38, 1052632), (56, 714286), (76, 526316), (112, 357143), (133, 300752), (152, 263158), (266, 150376), (304, 131579), (532, 75188), (1064, 37594), (2128, 18797)]