20782620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115459}}^1$

素因数の和:115474

約数の個数: 36

約数和(自身を含む): 63041160

約数和(自身を除く): 42258540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115459, 230918, 346377, 461836, 577295, 692754, 1039131, 1154590, 1385508, 1731885, 2078262, 2309180, 3463770, 4156524, 5195655, 6927540, 10391310, 20782620]

約数ペア:

[(1, 20782620), (2, 10391310), (3, 6927540), (4, 5195655), (5, 4156524), (6, 3463770), (9, 2309180), (10, 2078262), (12, 1731885), (15, 1385508), (18, 1154590), (20, 1039131), (30, 692754), (36, 577295), (45, 461836), (60, 346377), (90, 230918), (180, 115459)]