20552420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2011}}^1$

素因数の和:2100

約数の個数: 48

約数和(自身を含む): 50026368

約数和(自身を除く): 29473948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2011, 2044, 2555, 4022, 5110, 8044, 10055, 10220, 14077, 20110, 28154, 40220, 56308, 70385, 140770, 146803, 281540, 293606, 587212, 734015, 1027621, 1468030, 2055242, 2936060, 4110484, 5138105, 10276210, 20552420]

約数ペア:

[(1, 20552420), (2, 10276210), (4, 5138105), (5, 4110484), (7, 2936060), (10, 2055242), (14, 1468030), (20, 1027621), (28, 734015), (35, 587212), (70, 293606), (73, 281540), (140, 146803), (146, 140770), (292, 70385), (365, 56308), (511, 40220), (730, 28154), (1022, 20110), (1460, 14077), (2011, 10220), (2044, 10055), (2555, 8044), (4022, 5110)]