200000080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18797}}^1$

素因数の和:18836

約数の個数: 80

約数和(自身を含む): 559428480

約数和(自身を除く): 359428400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2128, 2660, 5320, 10640, 18797, 37594, 75188, 93985, 131579, 150376, 187970, 263158, 300752, 357143, 375940, 526316, 657895, 714286, 751880, 1052632, 1315790, 1428572, 1503760, 1785715, 2105264, 2500001, 2631580, 2857144, 3571430, 5000002, 5263160, 5714288, 7142860, 10000004, 10526320, 12500005, 14285720, 20000008, 25000010, 28571440, 40000016, 50000020, 100000040, 200000080]

約数ペア:

[(1, 200000080), (2, 100000040), (4, 50000020), (5, 40000016), (7, 28571440), (8, 25000010), (10, 20000008), (14, 14285720), (16, 12500005), (19, 10526320), (20, 10000004), (28, 7142860), (35, 5714288), (38, 5263160), (40, 5000002), (56, 3571430), (70, 2857144), (76, 2631580), (80, 2500001), (95, 2105264), (112, 1785715), (133, 1503760), (140, 1428572), (152, 1315790), (190, 1052632), (266, 751880), (280, 714286), (304, 657895), (380, 526316), (532, 375940), (560, 357143), (665, 300752), (760, 263158), (1064, 187970), (1330, 150376), (1520, 131579), (2128, 93985), (2660, 75188), (5320, 37594), (10640, 18797)]