8195900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1999}}^1$

素因数の和:2054

約数の個数: 36

約数和(自身を含む): 18228000

約数和(自身を除く): 10032100

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 1999, 2050, 3998, 4100, 7996, 9995, 19990, 39980, 49975, 81959, 99950, 163918, 199900, 327836, 409795, 819590, 1639180, 2048975, 4097950, 8195900]

約数ペア:

[(1, 8195900), (2, 4097950), (4, 2048975), (5, 1639180), (10, 819590), (20, 409795), (25, 327836), (41, 199900), (50, 163918), (82, 99950), (100, 81959), (164, 49975), (205, 39980), (410, 19990), (820, 9995), (1025, 7996), (1999, 4100), (2050, 3998)]