20876570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1123}}^1$

素因数の和:1167

約数の個数: 48

約数和(自身を含む): 44429472

約数和(自身を除く): 23552902

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 169, 286, 338, 715, 845, 1123, 1430, 1690, 1859, 2246, 3718, 5615, 9295, 11230, 12353, 14599, 18590, 24706, 29198, 61765, 72995, 123530, 145990, 160589, 189787, 321178, 379574, 802945, 948935, 1605890, 1897870, 2087657, 4175314, 10438285, 20876570]

約数ペア:

[(1, 20876570), (2, 10438285), (5, 4175314), (10, 2087657), (11, 1897870), (13, 1605890), (22, 948935), (26, 802945), (55, 379574), (65, 321178), (110, 189787), (130, 160589), (143, 145990), (169, 123530), (286, 72995), (338, 61765), (715, 29198), (845, 24706), (1123, 18590), (1430, 14599), (1690, 12353), (1859, 11230), (2246, 9295), (3718, 5615)]