87638920

素因数分解:

$2^3\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1951}}^1$

素因数の和:3085

約数の個数: 32

約数和(自身を含む): 197464320

約数和(自身を除く): 109825400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1123, 1951, 2246, 3902, 4492, 5615, 7804, 8984, 9755, 11230, 15608, 19510, 22460, 39020, 44920, 78040, 2190973, 4381946, 8763892, 10954865, 17527784, 21909730, 43819460, 87638920]

約数ペア:

[(1, 87638920), (2, 43819460), (4, 21909730), (5, 17527784), (8, 10954865), (10, 8763892), (20, 4381946), (40, 2190973), (1123, 78040), (1951, 44920), (2246, 39020), (3902, 22460), (4492, 19510), (5615, 15608), (7804, 11230), (8984, 9755)]