20127839984

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2531167}}^1$

素因数の和:2531253

約数の個数: 40

約数和(自身を含む): 45196535808

約数和(自身を除く): 25068695824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 2531167, 5062334, 10124668, 17718169, 20249336, 35436338, 40498672, 70872676, 141745352, 179712857, 283490704, 359425714, 718851428, 1257989999, 1437702856, 2515979998, 2875405712, 5031959996, 10063919992, 20127839984]

約数ペア:

[(1, 20127839984), (2, 10063919992), (4, 5031959996), (7, 2875405712), (8, 2515979998), (14, 1437702856), (16, 1257989999), (28, 718851428), (56, 359425714), (71, 283490704), (112, 179712857), (142, 141745352), (284, 70872676), (497, 40498672), (568, 35436338), (994, 20249336), (1136, 17718169), (1988, 10124668), (3976, 5062334), (7952, 2531167)]