1288408820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{433}}^1\times {\mathrm{4021}}^1$

素因数の和:4500

約数の個数: 48

約数和(自身を含む): 2785894608

約数和(自身を除く): 1497485788

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 433, 740, 866, 1732, 2165, 4021, 4330, 8042, 8660, 16021, 16084, 20105, 32042, 40210, 64084, 80105, 80420, 148777, 160210, 297554, 320420, 595108, 743885, 1487770, 1741093, 2975540, 3482186, 6964372, 8705465, 17410930, 34821860, 64420441, 128840882, 257681764, 322102205, 644204410, 1288408820]

約数ペア:

[(1, 1288408820), (2, 644204410), (4, 322102205), (5, 257681764), (10, 128840882), (20, 64420441), (37, 34821860), (74, 17410930), (148, 8705465), (185, 6964372), (370, 3482186), (433, 2975540), (740, 1741093), (866, 1487770), (1732, 743885), (2165, 595108), (4021, 320420), (4330, 297554), (8042, 160210), (8660, 148777), (16021, 80420), (16084, 80105), (20105, 64084), (32042, 40210)]