2008758320

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{49331}}^1$

素因数の和:49853

約数の個数: 40

約数和(自身を含む): 4679633520

約数和(自身を除く): 2670875200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 2036, 2545, 4072, 5090, 8144, 10180, 20360, 40720, 49331, 98662, 197324, 246655, 394648, 493310, 789296, 986620, 1973240, 3946480, 25109479, 50218958, 100437916, 125547395, 200875832, 251094790, 401751664, 502189580, 1004379160, 2008758320]

約数ペア:

[(1, 2008758320), (2, 1004379160), (4, 502189580), (5, 401751664), (8, 251094790), (10, 200875832), (16, 125547395), (20, 100437916), (40, 50218958), (80, 25109479), (509, 3946480), (1018, 1973240), (2036, 986620), (2545, 789296), (4072, 493310), (5090, 394648), (8144, 246655), (10180, 197324), (20360, 98662), (40720, 49331)]