20199443768

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1\times {\mathrm{7901}}^1$

素因数の和:8628

約数の個数: 64

約数和(自身を含む): 43967992320

約数和(自身を除く): 23768548552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 643, 994, 1286, 1988, 2572, 3976, 4501, 5144, 7901, 9002, 15802, 18004, 31604, 36008, 45653, 55307, 63208, 91306, 110614, 182612, 221228, 319571, 365224, 442456, 560971, 639142, 1121942, 1278284, 2243884, 2556568, 3926797, 4487768, 5080343, 7853594, 10160686, 15707188, 20321372, 31414376, 35562401, 40642744, 71124802, 142249604, 284499208, 360704353, 721408706, 1442817412, 2524930471, 2885634824, 5049860942, 10099721884, 20199443768]

約数ペア:

[(1, 20199443768), (2, 10099721884), (4, 5049860942), (7, 2885634824), (8, 2524930471), (14, 1442817412), (28, 721408706), (56, 360704353), (71, 284499208), (142, 142249604), (284, 71124802), (497, 40642744), (568, 35562401), (643, 31414376), (994, 20321372), (1286, 15707188), (1988, 10160686), (2572, 7853594), (3976, 5080343), (4501, 4487768), (5144, 3926797), (7901, 2556568), (9002, 2243884), (15802, 1278284), (18004, 1121942), (31604, 639142), (36008, 560971), (45653, 442456), (55307, 365224), (63208, 319571), (91306, 221228), (110614, 182612)]