2045900

素因数分解:

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

素因数の和:554

約数の個数: 36

約数和(自身を含む): 4557000

約数和(自身を除く): 2511100

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 499, 820, 998, 1025, 1996, 2050, 2495, 4100, 4990, 9980, 12475, 20459, 24950, 40918, 49900, 81836, 102295, 204590, 409180, 511475, 1022950, 2045900]

約数ペア:

[(1, 2045900), (2, 1022950), (4, 511475), (5, 409180), (10, 204590), (20, 102295), (25, 81836), (41, 49900), (50, 40918), (82, 24950), (100, 20459), (164, 12475), (205, 9980), (410, 4990), (499, 4100), (820, 2495), (998, 2050), (1025, 1996)]