2500040

素因数分解:

$2^3\times 5^1\times {\mathrm{62501}}^1$

素因数の和:62512

約数の個数: 16

約数和(自身を含む): 5625180

約数和(自身を除く): 3125140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 62501, 125002, 250004, 312505, 500008, 625010, 1250020, 2500040]

約数ペア:

[(1, 2500040), (2, 1250020), (4, 625010), (5, 500008), (8, 312505), (10, 250004), (20, 125002), (40, 62501)]