209691020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{136163}}^1$

素因数の和:136190

約数の個数: 48

約数和(自身を含む): 549013248

約数和(自身を除く): 339322228

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 136163, 272326, 544652, 680815, 953141, 1361630, 1497793, 1906282, 2723260, 2995586, 3812564, 4765705, 5991172, 7488965, 9531410, 10484551, 14977930, 19062820, 20969102, 29955860, 41938204, 52422755, 104845510, 209691020]

約数ペア:

[(1, 209691020), (2, 104845510), (4, 52422755), (5, 41938204), (7, 29955860), (10, 20969102), (11, 19062820), (14, 14977930), (20, 10484551), (22, 9531410), (28, 7488965), (35, 5991172), (44, 4765705), (55, 3812564), (70, 2995586), (77, 2723260), (110, 1906282), (140, 1497793), (154, 1361630), (220, 953141), (308, 680815), (385, 544652), (770, 272326), (1540, 136163)]