20022160

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{709}}^1$

素因数の和:1075

約数の個数: 40

約数和(自身を含む): 46749240

約数和(自身を除く): 26727080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 709, 1412, 1418, 1765, 2824, 2836, 3530, 3545, 5648, 5672, 7060, 7090, 11344, 14120, 14180, 28240, 28360, 56720, 250277, 500554, 1001108, 1251385, 2002216, 2502770, 4004432, 5005540, 10011080, 20022160]

約数ペア:

[(1, 20022160), (2, 10011080), (4, 5005540), (5, 4004432), (8, 2502770), (10, 2002216), (16, 1251385), (20, 1001108), (40, 500554), (80, 250277), (353, 56720), (706, 28360), (709, 28240), (1412, 14180), (1418, 14120), (1765, 11344), (2824, 7090), (2836, 7060), (3530, 5672), (3545, 5648)]