9974740

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1987}}^1$

素因数の和:2247

約数の個数: 24

約数和(自身を含む): 21040992

約数和(自身を除く): 11066252

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 1987, 2510, 3974, 5020, 7948, 9935, 19870, 39740, 498737, 997474, 1994948, 2493685, 4987370, 9974740]

約数ペア:

[(1, 9974740), (2, 4987370), (4, 2493685), (5, 1994948), (10, 997474), (20, 498737), (251, 39740), (502, 19870), (1004, 9935), (1255, 7948), (1987, 5020), (2510, 3974)]