20528488

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 39836160

約数和(自身を除く): 19307672

約数列:

[1, 2, 4, 8, 37, 74, 148, 223, 296, 311, 446, 622, 892, 1244, 1784, 2488, 8251, 11507, 16502, 23014, 33004, 46028, 66008, 69353, 92056, 138706, 277412, 554824, 2566061, 5132122, 10264244, 20528488]

約数ペア:

[(1, 20528488), (2, 10264244), (4, 5132122), (8, 2566061), (37, 554824), (74, 277412), (148, 138706), (223, 92056), (296, 69353), (311, 66008), (446, 46028), (622, 33004), (892, 23014), (1244, 16502), (1784, 11507), (2488, 8251)]