20020990010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1437257}}^1$

素因数の和:1437470

約数の個数: 32

約数和(自身を含む): 41393030400

約数和(自身を除く): 21372040390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1990, 2786, 6965, 13930, 1437257, 2874514, 7186285, 10060799, 14372570, 20121598, 50303995, 100607990, 286014143, 572028286, 1430070715, 2002099001, 2860141430, 4004198002, 10010495005, 20020990010]

約数ペア:

[(1, 20020990010), (2, 10010495005), (5, 4004198002), (7, 2860141430), (10, 2002099001), (14, 1430070715), (35, 572028286), (70, 286014143), (199, 100607990), (398, 50303995), (995, 20121598), (1393, 14372570), (1990, 10060799), (2786, 7186285), (6965, 2874514), (13930, 1437257)]