251011850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1621}}^1$

素因数の和:1815

約数の個数: 48

約数和(自身を含む): 494774880

約数和(自身を除く): 243763030

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 163, 190, 326, 475, 815, 950, 1621, 1630, 3097, 3242, 4075, 6194, 8105, 8150, 15485, 16210, 30799, 30970, 40525, 61598, 77425, 81050, 153995, 154850, 264223, 307990, 528446, 769975, 1321115, 1539950, 2642230, 5020237, 6605575, 10040474, 13211150, 25101185, 50202370, 125505925, 251011850]

約数ペア:

[(1, 251011850), (2, 125505925), (5, 50202370), (10, 25101185), (19, 13211150), (25, 10040474), (38, 6605575), (50, 5020237), (95, 2642230), (163, 1539950), (190, 1321115), (326, 769975), (475, 528446), (815, 307990), (950, 264223), (1621, 154850), (1630, 153995), (3097, 81050), (3242, 77425), (4075, 61598), (6194, 40525), (8105, 30970), (8150, 30799), (15485, 16210)]