4026040

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{401}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 9117360

約数和(自身を除く): 5091320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 401, 502, 802, 1004, 1255, 1604, 2005, 2008, 2510, 3208, 4010, 5020, 8020, 10040, 16040, 100651, 201302, 402604, 503255, 805208, 1006510, 2013020, 4026040]

約数ペア:

[(1, 4026040), (2, 2013020), (4, 1006510), (5, 805208), (8, 503255), (10, 402604), (20, 201302), (40, 100651), (251, 16040), (401, 10040), (502, 8020), (802, 5020), (1004, 4010), (1255, 3208), (1604, 2510), (2005, 2008)]