19231460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:596

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 23104540

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 499, 820, 940, 998, 1927, 1996, 2495, 3854, 4990, 7708, 9635, 9980, 19270, 20459, 23453, 38540, 40918, 46906, 81836, 93812, 102295, 117265, 204590, 234530, 409180, 469060, 961573, 1923146, 3846292, 4807865, 9615730, 19231460]

約数ペア:

[(1, 19231460), (2, 9615730), (4, 4807865), (5, 3846292), (10, 1923146), (20, 961573), (41, 469060), (47, 409180), (82, 234530), (94, 204590), (164, 117265), (188, 102295), (205, 93812), (235, 81836), (410, 46906), (470, 40918), (499, 38540), (820, 23453), (940, 20459), (998, 19270), (1927, 9980), (1996, 9635), (2495, 7708), (3854, 4990)]