664199420

素因数分解:

$2^2\times 5^1\times {\mathrm{751}}^1\times {\mathrm{44221}}^1$

素因数の和:44981

約数の個数: 24

約数和(自身を含む): 1396707648

約数和(自身を除く): 732508228

約数列:

[1, 2, 4, 5, 10, 20, 751, 1502, 3004, 3755, 7510, 15020, 44221, 88442, 176884, 221105, 442210, 884420, 33209971, 66419942, 132839884, 166049855, 332099710, 664199420]

約数ペア:

[(1, 664199420), (2, 332099710), (4, 166049855), (5, 132839884), (10, 66419942), (20, 33209971), (751, 884420), (1502, 442210), (3004, 221105), (3755, 176884), (7510, 88442), (15020, 44221)]