28389780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157721}}^1$

素因数の和:157736

約数の個数: 36

約数和(自身を含む): 86116212

約数和(自身を除く): 57726432

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 157721, 315442, 473163, 630884, 788605, 946326, 1419489, 1577210, 1892652, 2365815, 2838978, 3154420, 4731630, 5677956, 7097445, 9463260, 14194890, 28389780]

約数ペア:

[(1, 28389780), (2, 14194890), (3, 9463260), (4, 7097445), (5, 5677956), (6, 4731630), (9, 3154420), (10, 2838978), (12, 2365815), (15, 1892652), (18, 1577210), (20, 1419489), (30, 946326), (36, 788605), (45, 630884), (60, 473163), (90, 315442), (180, 157721)]