18958660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{709}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 45803520

約数和(自身を除く): 26844860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 709, 764, 955, 1337, 1418, 1910, 2674, 2836, 3545, 3820, 4963, 5348, 6685, 7090, 9926, 13370, 14180, 19852, 24815, 26740, 49630, 99260, 135419, 270838, 541676, 677095, 947933, 1354190, 1895866, 2708380, 3791732, 4739665, 9479330, 18958660]

約数ペア:

[(1, 18958660), (2, 9479330), (4, 4739665), (5, 3791732), (7, 2708380), (10, 1895866), (14, 1354190), (20, 947933), (28, 677095), (35, 541676), (70, 270838), (140, 135419), (191, 99260), (382, 49630), (709, 26740), (764, 24815), (955, 19852), (1337, 14180), (1418, 13370), (1910, 9926), (2674, 7090), (2836, 6685), (3545, 5348), (3820, 4963)]