51897640

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2549}}^1$

素因数の和:3069

約数の個数: 32

約数和(自身を含む): 117045000

約数和(自身を除く): 65147360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 2549, 4072, 5090, 5098, 10180, 10196, 12745, 20360, 20392, 25490, 50980, 101960, 1297441, 2594882, 5189764, 6487205, 10379528, 12974410, 25948820, 51897640]

約数ペア:

[(1, 51897640), (2, 25948820), (4, 12974410), (5, 10379528), (8, 6487205), (10, 5189764), (20, 2594882), (40, 1297441), (509, 101960), (1018, 50980), (2036, 25490), (2545, 20392), (2549, 20360), (4072, 12745), (5090, 10196), (5098, 10180)]