20285420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59663}}^1$

素因数の和:59689

約数の個数: 24

約数和(自身を含む): 45105984

約数和(自身を除く): 24820564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 59663, 119326, 238652, 298315, 596630, 1014271, 1193260, 2028542, 4057084, 5071355, 10142710, 20285420]

約数ペア:

[(1, 20285420), (2, 10142710), (4, 5071355), (5, 4057084), (10, 2028542), (17, 1193260), (20, 1014271), (34, 596630), (68, 298315), (85, 238652), (170, 119326), (340, 59663)]