4881220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4001}}^1$

素因数の和:4071

約数の個数: 24

約数和(自身を含む): 10421208

約数和(自身を除く): 5539988

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 4001, 8002, 16004, 20005, 40010, 80020, 244061, 488122, 976244, 1220305, 2440610, 4881220]

約数ペア:

[(1, 4881220), (2, 2440610), (4, 1220305), (5, 976244), (10, 488122), (20, 244061), (61, 80020), (122, 40010), (244, 20005), (305, 16004), (610, 8002), (1220, 4001)]