17989855690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1\times {\mathrm{2221}}^1$

素因数の和:2815

約数の個数: 64

約数和(自身を含む): 34556544000

約数和(自身を除く): 16566688310

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 178, 190, 445, 479, 890, 958, 1691, 2221, 2395, 3382, 4442, 4790, 8455, 9101, 11105, 16910, 18202, 22210, 42199, 42631, 45505, 84398, 85262, 91010, 197669, 210995, 213155, 395338, 421990, 426310, 809989, 988345, 1063859, 1619978, 1976690, 2127718, 3755711, 4049945, 5319295, 7511422, 8099890, 10638590, 18778555, 20213321, 37557110, 40426642, 94683451, 101066605, 189366902, 202133210, 473417255, 946834510, 1798985569, 3597971138, 8994927845, 17989855690]

約数ペア:

[(1, 17989855690), (2, 8994927845), (5, 3597971138), (10, 1798985569), (19, 946834510), (38, 473417255), (89, 202133210), (95, 189366902), (178, 101066605), (190, 94683451), (445, 40426642), (479, 37557110), (890, 20213321), (958, 18778555), (1691, 10638590), (2221, 8099890), (2395, 7511422), (3382, 5319295), (4442, 4049945), (4790, 3755711), (8455, 2127718), (9101, 1976690), (11105, 1619978), (16910, 1063859), (18202, 988345), (22210, 809989), (42199, 426310), (42631, 421990), (45505, 395338), (84398, 213155), (85262, 210995), (91010, 197669)]