131462690

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{20509}}^1$

素因数の和:21157

約数の個数: 16

約数和(自身を含む): 237013560

約数和(自身を除く): 105550870

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6410, 20509, 41018, 102545, 205090, 13146269, 26292538, 65731345, 131462690]

約数ペア:

[(1, 131462690), (2, 65731345), (5, 26292538), (10, 13146269), (641, 205090), (1282, 102545), (3205, 41018), (6410, 20509)]