2621639780

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{522239}}^1$

素因数の和:522499

約数の個数: 24

約数和(自身を含む): 5527388160

約数和(自身を除く): 2905748380

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 522239, 1044478, 2088956, 2611195, 5222390, 10444780, 131081989, 262163978, 524327956, 655409945, 1310819890, 2621639780]

約数ペア:

[(1, 2621639780), (2, 1310819890), (4, 655409945), (5, 524327956), (10, 262163978), (20, 131081989), (251, 10444780), (502, 5222390), (1004, 2611195), (1255, 2088956), (2510, 1044478), (5020, 522239)]