211412840

素因数分解:

$2^3\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{4001}}^1$

素因数の和:5333

約数の個数: 32

約数和(自身を含む): 476157960

約数和(自身を除く): 264745120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1321, 2642, 4001, 5284, 6605, 8002, 10568, 13210, 16004, 20005, 26420, 32008, 40010, 52840, 80020, 160040, 5285321, 10570642, 21141284, 26426605, 42282568, 52853210, 105706420, 211412840]

約数ペア:

[(1, 211412840), (2, 105706420), (4, 52853210), (5, 42282568), (8, 26426605), (10, 21141284), (20, 10570642), (40, 5285321), (1321, 160040), (2642, 80020), (4001, 52840), (5284, 40010), (6605, 32008), (8002, 26420), (10568, 20005), (13210, 16004)]