128227820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{1693}}^1$

素因数の和:2250

約数の個数: 48

約数和(自身を含む): 308497728

約数和(自身を除く): 180269908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 541, 1082, 1693, 2164, 2705, 3386, 3787, 5410, 6772, 7574, 8465, 10820, 11851, 15148, 16930, 18935, 23702, 33860, 37870, 47404, 59255, 75740, 118510, 237020, 915913, 1831826, 3663652, 4579565, 6411391, 9159130, 12822782, 18318260, 25645564, 32056955, 64113910, 128227820]

約数ペア:

[(1, 128227820), (2, 64113910), (4, 32056955), (5, 25645564), (7, 18318260), (10, 12822782), (14, 9159130), (20, 6411391), (28, 4579565), (35, 3663652), (70, 1831826), (140, 915913), (541, 237020), (1082, 118510), (1693, 75740), (2164, 59255), (2705, 47404), (3386, 37870), (3787, 33860), (5410, 23702), (6772, 18935), (7574, 16930), (8465, 15148), (10820, 11851)]