131191400

素因数分解:

$2^3\times 5^2\times {\mathrm{769}}^1\times {\mathrm{853}}^1$

素因数の和:1638

約数の個数: 48

約数和(自身を含む): 305774700

約数和(自身を除く): 174583300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 769, 853, 1538, 1706, 3076, 3412, 3845, 4265, 6152, 6824, 7690, 8530, 15380, 17060, 19225, 21325, 30760, 34120, 38450, 42650, 76900, 85300, 153800, 170600, 655957, 1311914, 2623828, 3279785, 5247656, 6559570, 13119140, 16398925, 26238280, 32797850, 65595700, 131191400]

約数ペア:

[(1, 131191400), (2, 65595700), (4, 32797850), (5, 26238280), (8, 16398925), (10, 13119140), (20, 6559570), (25, 5247656), (40, 3279785), (50, 2623828), (100, 1311914), (200, 655957), (769, 170600), (853, 153800), (1538, 85300), (1706, 76900), (3076, 42650), (3412, 38450), (3845, 34120), (4265, 30760), (6152, 21325), (6824, 19225), (7690, 17060), (8530, 15380)]