20130200

素因数分解:

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

素因数の和:668

約数の個数: 48

約数和(自身を含む): 47106360

約数和(自身を除く): 26976160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 251, 401, 502, 802, 1004, 1255, 1604, 2005, 2008, 2510, 3208, 4010, 5020, 6275, 8020, 10025, 10040, 12550, 16040, 20050, 25100, 40100, 50200, 80200, 100651, 201302, 402604, 503255, 805208, 1006510, 2013020, 2516275, 4026040, 5032550, 10065100, 20130200]

約数ペア:

[(1, 20130200), (2, 10065100), (4, 5032550), (5, 4026040), (8, 2516275), (10, 2013020), (20, 1006510), (25, 805208), (40, 503255), (50, 402604), (100, 201302), (200, 100651), (251, 80200), (401, 50200), (502, 40100), (802, 25100), (1004, 20050), (1255, 16040), (1604, 12550), (2005, 10040), (2008, 10025), (2510, 8020), (3208, 6275), (4010, 5020)]