207916520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{742559}}^1$

素因数の和:742577

約数の個数: 32

約数和(自身を含む): 534643200

約数和(自身を除く): 326726680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 742559, 1485118, 2970236, 3712795, 5197913, 5940472, 7425590, 10395826, 14851180, 20791652, 25989565, 29702360, 41583304, 51979130, 103958260, 207916520]

約数ペア:

[(1, 207916520), (2, 103958260), (4, 51979130), (5, 41583304), (7, 29702360), (8, 25989565), (10, 20791652), (14, 14851180), (20, 10395826), (28, 7425590), (35, 5940472), (40, 5197913), (56, 3712795), (70, 2970236), (140, 1485118), (280, 742559)]