20676550

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 40265280

約数和(自身を除く): 19588730

約数列:

[1, 2, 5, 10, 25, 43, 50, 59, 86, 118, 163, 215, 295, 326, 430, 590, 815, 1075, 1475, 1630, 2150, 2537, 2950, 4075, 5074, 7009, 8150, 9617, 12685, 14018, 19234, 25370, 35045, 48085, 63425, 70090, 96170, 126850, 175225, 240425, 350450, 413531, 480850, 827062, 2067655, 4135310, 10338275, 20676550]

約数ペア:

[(1, 20676550), (2, 10338275), (5, 4135310), (10, 2067655), (25, 827062), (43, 480850), (50, 413531), (59, 350450), (86, 240425), (118, 175225), (163, 126850), (215, 96170), (295, 70090), (326, 63425), (430, 48085), (590, 35045), (815, 25370), (1075, 19234), (1475, 14018), (1630, 12685), (2150, 9617), (2537, 8150), (2950, 7009), (4075, 5074)]