198310040

素因数分解:

$2^3\times 5^1\times {\mathrm{4957751}}^1$

素因数の和:4957762

約数の個数: 16

約数和(自身を含む): 446197680

約数和(自身を除く): 247887640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4957751, 9915502, 19831004, 24788755, 39662008, 49577510, 99155020, 198310040]

約数ペア:

[(1, 198310040), (2, 99155020), (4, 49577510), (5, 39662008), (8, 24788755), (10, 19831004), (20, 9915502), (40, 4957751)]